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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2019 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2015-2024 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
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;;; Copyright © 2022 Remco van 't Veer <remco@remworks.net>
;;; Copyright © 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2022 Wamm K. D. <jaft.r@outlook.com>
;;; Copyright © 2022 Jose G Perez Taveras <josegpt27@gmail.com>
;;; Copyright © 2022 jgart <jgart@dismail.de>
;;; Copyright © 2023 Jonathan Brielmaier <jonathan.brielmaier@web.de>
;;; Copyright © 2023 Antero Mejr <antero@mailbox.org>
;;; Copyright © 2023, 2024 Sharlatan Hellseher <sharlatanus@gmail.com>
;;; Copyright © 2023 Yovan Naumovski <yovan@gorski.stream>
;;; Copyright © 2023 Zheng Junjie <873216071@qq.com>
;;; Copyright © 2024 Parnikkapore <poomklao@yahoo.com>
;;; Copyright © 2024 hapster <o.rojon@posteo.net>
;;; Copyright © 2024 Nikita Domnitskii <nikita@domnitskii.me>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages music)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix build-system ant)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system emacs)
  #:use-module (guix build-system glib-or-gtk)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system go)
  #:use-module (guix build-system meson)
  #:use-module (guix build-system perl)
  #:use-module (guix build-system pyproject)
  #:use-module (guix build-system python)
  #:use-module (guix build-system qt)
  #:use-module (guix build-system scons)
  #:use-module (guix build-system trivial)
  #:use-module (guix build-system waf)
  #:use-module (guix download)
  #:use-module (guix gexp)
  #:use-module (guix git-download)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (gnu packages)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages algebra)
  #:use-module (gnu packages apr)
  #:use-module (gnu packages assembly)
  #:use-module (gnu packages audio)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages backup)
  #:use-module (gnu packages base) ;libbdf
  #:use-module (gnu packages bash)
  #:use-module (gnu packages benchmark)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages build-tools)
  #:use-module (gnu packages cdrom)
  #:use-module (gnu packages check)
  #:use-module (gnu packages cmake)
  #:use-module (gnu packages code)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages cpp)
  #:use-module (gnu packages crypto)
  #:use-module (gnu packages curl)
  #:use-module (gnu packages cyrus-sasl)
  #:use-module (gnu packages datastructures)
  #:use-module (gnu packages digest)
  #:use-module (gnu packages docbook)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages emacs)
  #:use-module (gnu packages file)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages fltk)
  #:use-module (gnu packages fonts)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages game-development)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages gl)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages gnunet)
  #:use-module (gnu packages gnupg)
  #:use-module (gnu packages golang)
  #:use-module (gnu packages golang-xyz)
  #:use-module (gnu packages gpodder)
  #:use-module (gnu packages graphics)
  #:use-module (gnu packages graphviz)
  #:use-module (gnu packages gstreamer)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages guile)
  #:use-module (gnu packages haskell)
  #:use-module (gnu packages haskell-xyz)
  #:use-module (gnu packages icu4c)
  #:use-module (gnu packages image)
  #:use-module (gnu packages image-viewers)
  #:use-module (gnu packages imagemagick)
  #:use-module (gnu packages java)
  #:use-module (gnu packages kde-frameworks)
  #:use-module (gnu packages libevent)
  #:use-module (gnu packages libffi)
  #:use-module (gnu packages libusb)
  #:use-module (gnu packages linux) ; for alsa-utils
  #:use-module (gnu packages lirc)
  #:use-module (gnu packages llvm)
  #:use-module (gnu packages lua)
  #:use-module (gnu packages man)
  #:use-module (gnu packages mp3)
  #:use-module (gnu packages mpd)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages netpbm)
  #:use-module (gnu packages networking)
  #:use-module (gnu packages pcre)
  #:use-module (gnu packages pdf)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages perl-check)
  #:use-module (gnu packages perl-web)
  #:use-module (gnu packages php)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages protobuf)
  #:use-module (gnu packages pulseaudio) ;libsndfile
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-build)
  #:use-module (gnu packages python-check)
  #:use-module (gnu packages python-compression)
  #:use-module (gnu packages python-web)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages qt)
  #:use-module (gnu packages rdf)
  #:use-module (gnu packages readline)
  #:use-module (gnu packages rsync)
  #:use-module (gnu packages ruby)
  #:use-module (gnu packages scsi)
  #:use-module (gnu packages sdl)
  #:use-module (gnu packages serialization)
  #:use-module (gnu packages sphinx)
  #:use-module (gnu packages sqlite)
  #:use-module (gnu packages stb)
  #:use-module (gnu packages tcl)
  #:use-module (gnu packages terminals)
  #:use-module (gnu packages tex)
  #:use-module (gnu packages texinfo)
  #:use-module (gnu packages textutils)
  #:use-module (gnu packages time)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages valgrind)
  #:use-module (gnu packages version-control)
  #:use-module (gnu packages video)
  #:use-module (gnu packages vim)       ;for 'xxd'
  #:use-module (gnu packages web)
  #:use-module (gnu packages webkit)
  #:use-module (gnu packages wm)
  #:use-module (gnu packages wxwidgets)
  #:use-module (gnu packages xdisorg)
  #:use-module (gnu packages xiph)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages xorg)
  #:use-module ((srfi srfi-1) #:select (last)))

(define-public alsa-scarlett-gui
  (package
    (name "alsa-scarlett-gui")
    (version "0.4.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/geoffreybennett/alsa-scarlett-gui")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1397z3c232n3zpqmpc77lbwv8z5szsbagawl3l7hiizn152hkgpv"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #false ;there is no check target
      #:make-flags
      #~(list (string-append "CC=" #$(cc-for-target))
              (string-append "PREFIX=" #$output))
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'chdir
            (lambda _
              (substitute* "src/Makefile"
                (("	cc -o")
                 (string-append "	"
                                #$(cc-for-target) " -o")))
              (chdir "src")))
          (add-after 'install 'wrap-program
            (lambda* (#:key inputs #:allow-other-keys)
              (wrap-program (string-append #$output "/bin/alsa-scarlett-gui")
                ;; For GtkFileChooserDialog.
                `("GSETTINGS_SCHEMA_DIR" =
                  (,(string-append #$(this-package-input "gtk")
                                   "/share/glib-2.0/schemas"))))))
          (delete 'configure))))
    (inputs
     (list alsa-lib glib gtk openssl))
    (native-inputs
     (list `(,glib "bin") pkg-config))
    (home-page "https://github.com/geoffreybennett/alsa-scarlett-gui")
    (synopsis "ALSA Scarlett2 control panel")
    (description "This package provides a Gtk4 GUI for the ALSA controls
presented by the Linux kernel Focusrite Scarlett2 USB Protocol Mixer Driver.")
    (license license:gpl3+)))

(define-public audacious
  (package
    (name "audacious")
    (version "4.3.1")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://distfiles.audacious-media-player.org/"
                           "audacious-" version ".tar.bz2"))
       (sha256
        (base32 "0hi0njnw3q7kngmjk837ynagighrbz8a4wpf8bim2nsh85lf5sc5"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:configure-flags
      #~(list (string-append "LDFLAGS=-Wl,-rpath=" #$output "/lib")
              "--disable-gtk")
      #:tests? #f                       ; no check target
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'install 'unpack-plugins
            (lambda* (#:key inputs #:allow-other-keys)
              (invoke "tar" "xvf"
                      #$(this-package-native-input "audacious-plugins"))))
          (add-after 'unpack-plugins 'configure-plugins
            (lambda* (#:key configure-flags outputs #:allow-other-keys)
              (with-directory-excursion
                  (string-append "audacious-plugins-" #$version)
                (substitute* "configure"
                  (("/bin/sh") (which "sh")))
                (apply invoke "./configure"
                       (append configure-flags
                               ;; audacious-plugins requires audacious to build.
                               (list (string-append "PKG_CONFIG_PATH="
                                                    #$output "/lib/pkgconfig:"
                                                    (getenv "PKG_CONFIG_PATH"))
                                     (string-append "--prefix=" #$output)))))))
          (add-after 'configure-plugins 'build-plugins
            (lambda _
              (with-directory-excursion
                  (string-append "audacious-plugins-" #$version)
                (invoke "make" "-j" (number->string (parallel-job-count))))))
          (add-after 'build-plugins 'install-plugins
            (lambda _
              (with-directory-excursion
                  (string-append "audacious-plugins-" #$version)
                (invoke "make" "install")))))))
    (native-inputs
     `(("audacious-plugins"
        ,(origin
           (method url-fetch)
           (uri (string-append "https://distfiles.audacious-media-player.org/"
                               "audacious-plugins-" version ".tar.bz2"))
           (sha256
            (base32 "19n8zpayakszm00bakfzagbbqci95dxv4h7j9ml2sfjqmzijdsid"))))
       ("gettext" ,gettext-minimal)
       ("glib:bin" ,glib "bin")         ; for gdbus-codegen
       ("pkg-config" ,pkg-config)))
    (inputs
     (list dbus
           qtbase-5
           qtmultimedia-5
           ;; Plugin dependencies
           alsa-lib
           curl
           faad2
           ffmpeg
           flac
           fluidsynth
           lame
           libbs2b
           libcddb
           libcdio-paranoia
           libcue
           libnotify
           libogg
           libopenmpt
           libsamplerate
           libsndfile
           libvorbis
           libxcomposite
           libxml2
           libxrender
           lirc
           jack-1
           mesa
           mpg123
           neon
           opusfile
           pulseaudio
           sdl2
           soxr
           wavpack))
    (home-page "https://audacious-media-player.org")
    (synopsis "Modular and skinnable audio player")
    (description
     "Audacious is an audio player descended from XMMS.  Drag and drop
folders and individual song files, search for artists and albums in
your entire music library, or create and edit your own custom
playlists.  Listen to CD’s or stream music from the Internet.  Tweak
the sound with the graphical equalizer or experiment with LADSPA
effects.  Enjoy the modern GTK-themed interface or change things up
with Winamp Classic skins.  Use the plugins included with Audacious to
fetch lyrics for your music, to set an alarm in the morning, and
more.")
    ;; According to COPYING, Audacious and its plugins are licensed
    ;; under the BSD 2-clause license and libguess is licensed under
    ;; the BSD 3-clause license.
    (license (list license:bsd-2
                   license:bsd-3
                   ;; Plugin licenses that aren't BSD 2- or 3-clause.
                   license:lgpl2.1
                   license:gpl2
                   license:gpl3
                   license:expat
                   license:isc
                   license:lgpl2.0))))

(define-public aria-maestosa
  (package
    (name "aria-maestosa")
    (version "1.4.13")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/ariamaestosa/ariamaestosa/"
                                  version "/AriaSrc-" version ".tar.bz2"))
              (sha256
               (base32
                "1cs3z6frx2ch7rm5ammx9p0rxcjrbj1vq14hvcbimpaw39rdsn3d"))))
    (build-system scons-build-system)
    (arguments
     `(#:tests? #f  ;no tests
       #:scons-flags
       (list (string-append "prefix=" (assoc-ref %outputs "out")))
       #:scons ,scons-python2
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'scons-propagate-environment
           (lambda _
             ;; By design, SCons does not, by default, propagate
             ;; environment variables to subprocesses.  See:
             ;; <http://comments.gmane.org/gmane.linux.distributions.nixos/4969>
             ;; Here, we modify the SConstruct file to arrange for
             ;; environment variables to be propagated.
             (substitute* "SConstruct"
               (("env = Environment\\(\\)")
                "env = Environment(ENV=os.environ)")
               ;; Scons errors out when copying subdirectories from Resources,
               ;; so we move them instead.
               (("Copy") "Move")
               ;; We move the "score" and "Documentation" directories at once,
               ;; so we have to ignore files contained therein.
               (("if \".svn\" in file" line)
                (string-append line
                               " or \"score/\" in file"
                               " or \"Documentation/\" in file")))
             #t))
         (add-after 'install 'fix-directory-permissions
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (chmod (string-append out "/share/Aria/Documentation") #o555)
               (chmod (string-append out "/share/Aria/score") #o555)
               #t))))))
    (inputs
     (list wxwidgets glib alsa-lib))
    (native-inputs
     (list pkg-config))
    (home-page "https://ariamaestosa.sourceforge.net/")
    (synopsis "MIDI sequencer and editor")
    (description
     "Aria Maestosa is a MIDI sequencer and editor.  It lets you compose, edit
and play MIDI files with a few clicks in a user-friendly interface offering
score, keyboard, guitar, drum and controller views.")
    (license license:gpl3+)))

(define-public libgpod
  (package
    (name "libgpod")
    (version "0.8.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://git.code.sf.net/p/gtkpod/libgpod")
             (commit "8dc5015ae036b219c4c9579a156886aa3a722aa5")))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1yzngb7h1mibz4x56w9fh02vx8xi4wyq4fjc3ad0jayv3hxjjkqv"))))
    (arguments
     (list
      #:configure-flags
      #~(list
         "--without-hal"
         "--enable-udev"
         (string-append "--with-udev-dir=" #$output "/lib/udev")
         (string-append "--prefix=" #$output))

      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-autotools-version-requirement
            (lambda _
              (setenv "ACLOCAL_FLAGS"
                      (string-join
                       (map (lambda (s) (string-append "-I " s))
                            (string-split (getenv "ACLOCAL_PATH") #\:))
                       " "))
              (substitute* "configure.ac"
                (("libplist >= 1\\.0") "libplist-2.0 >= 2.2")
                (("-Werror") ""))
              ;; patch for plist-2.0
              (substitute* "tools/ipod-lockdown.c"
                (("plist_dict_insert_item") "plist_dict_set_item"))
              ;; it expects version-suffixed binary
              (substitute* "gnome-autogen.sh"
                (("automake-1\\.13") "automake")))))))

    (build-system gnu-build-system)
    (native-inputs
     (list automake libtool autoconf intltool pkg-config `(,glib "bin") gtk-doc))
    (propagated-inputs (list libimobiledevice gdk-pixbuf))
    (inputs (list libxml2 sg3-utils sqlite taglib libplist))
    (home-page "https://sourceforge.net/projects/gtkpod")
    (synopsis "Library to access iPod contents")
    (description "This package provides a library to access iPod contents.  It
enables iPod support in music players such as Clementine.")
    (license license:lgpl2.1+)))

(define-public clementine
  (package
    (name "clementine")
    (version "1.4.0rc1-450-g2725ef99d")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/clementine-player/Clementine")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1pcwwi9b2qcfjn748577gqx6d1hgg7cisw2dn43npwafdvvkdb90"))
              (modules '((guix build utils)
                         (ice-9 regex)))
              (snippet
               '(begin
                  (use-modules ((ice-9 regex)))
                  (for-each
                   (lambda (dir)
                     ;; TODO: The following dependencies are still bundled:
                     ;; - "qxt": Appears to be unmaintained upstream.
                     ;; - "qsqlite"
                     ;; - "qtsingleapplication"
                     ;; - "qocoa"
                     ;; - "qtiocompressor"
                     (let ((bundled '("qsqlite"
                                      "qtsingleapplication"
                                      "qxt"
                                      "qocoa"
                                      "qtiocompressor")))
                       (if (not
                            (string-match
                              (string-append ".?*(" (string-join bundled "|") ")")
                              dir))
                           (delete-file-recursively dir))))
                   (find-files "3rdparty"
                               (lambda (file stat)
                                 (string-match "^3rdparty/[^/]*$" file))
                               #:directories? #t))))))
    (build-system cmake-build-system)
    (arguments
     '(#:test-target "clementine_test"
       #:configure-flags
       (list ;; Requires unpackaged "projectm"
             "-DENABLE_VISUALISATIONS=OFF"
             ;; Otherwise it may try to download a non-free library at run-time.
             ;; TODO In an origin snippet, remove the code that performs the
             ;; download.
             "-DHAVE_SPOTIFY_DOWNLOADER=FALSE"
             ;; Clementine checks that the taglib version is higher than 1.11,
             ;; because of https://github.com/taglib/taglib/issues/864. Remove
             ;; this flag when 1.12 is released.
             "-DUSE_SYSTEM_TAGLIB=TRUE")
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'wrap-program
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out             (assoc-ref outputs "out"))
                   (gst-plugin-path (getenv "GST_PLUGIN_SYSTEM_PATH")))
               (wrap-program (string-append out "/bin/clementine")
                 `("GST_PLUGIN_SYSTEM_PATH" ":" prefix
                   (,gst-plugin-path)))))))))
    (native-inputs
     (list gettext-minimal
           googletest
           pkg-config
           qttools-5))
    (inputs
     (list bash-minimal
           boost
           chromaprint
           fftw
           glib
           glu
           gstreamer
           gst-plugins-base
           gst-plugins-good
           gst-libav
           libcdio
           libmygpo-qt
           libgpod
           libmtp
           libxml2
           protobuf
           pulseaudio
           qtbase-5
           qtx11extras
           sqlite
           sparsehash
           taglib))
    (home-page "https://clementine-player.org")
    (synopsis "Music player and library organizer")
    (description "Clementine is a multiplatform music player.  It is inspired
by Amarok 1.4, focusing on a fast and easy-to-use interface for searching and
playing your music.")
    (license (list
               ;; clementine and qtiocompressor are under GPLv3.
               license:gpl3+
               ;; qxt is under CPL1.0.
               license:cpl1.0
               ;; qsqlite and qtsingleapplication are under LGPL2.1+.
               license:lgpl2.1+
               ;; qocoa is under MIT and CC by-sa for the icons.
               license:cc-by-sa3.0))))

(define-public ctrlr
  ;; The latest release from 2021 does not have a build system.
  (let ((commit "8aa00d82127acda42ad9ac9b7b479461e9436aa4")
        (revision "1"))
    (package
      (name "ctrlr")
      (version (git-version "5.5.9" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/RomanKubiak/ctrlr")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1lpfkjp9y0wh2kj02isv8ixnxn3wyvrxhkx0rybwzswfiz5kqdlm"))))
      (build-system cmake-build-system)
      (arguments
       (list
        #:cmake cmake                   ;needs 3.25
        #:tests? #false                 ;there are none
        #:phases
        #~(modify-phases %standard-phases
            (add-after 'unpack 'pre-configure
              (lambda _
                ;; Override default location of fonts.conf.  Without this no
                ;; fonts will be rendered at all.
                (substitute* "JUCE/modules/juce_graphics/native/juce_linux_Fonts.cpp"
                  (("/usr/share/fonts/fonts.conf")
                   "/run/current-system/profile/etc/fonts/fonts.conf"))
                ;; Do not build the VST or AU plugins, because these require
                ;; external proprietary SDKs.
                (substitute* "CMakeLists.txt"
                  (("juce_set_vst2_sdk_path.*") "")
                  (("FORMATS VST3 VST AU Standalone")
                   "FORMATS Standalone")
                  ;; BFD also need -liberty.
                  (("list\\(APPEND ctrlrLibs \"bfd\"\\)" m)
                   (string-append m "
list(APPEND ctrlrLibs \"iberty\")")))))
            ;; The install target doesn't install ctrlr but JUCE helpers.
            (replace 'install
              (lambda _
                (install-file "ctrlr_artefacts/RelWithDebInfo/Standalone/ctrlr"
                              (string-append #$output "/bin")))))))
      (inputs
       (list alsa-lib
             boost
             eudev
             freetype
             libiberty
             libx11
             webkitgtk-for-gtk3))
      (native-inputs
       (list pkg-config))
      (home-page "https://ctrlr.org/")
      (synopsis "Control any MIDI-enabled hardware")
      (description "This package provides a tool to control any MIDI-enabled
hardware such as synthesizers, drum machines, samplers, or effects.  It lets
you create custom user interfaces for your MIDI hardware.")
      (license (list license:gpl2+
                     license:gpl3       ;JUCE
                     license:bsd-3)))))

(define-public qmmp
  (package
    (name "qmmp")
    (version "2.1.9")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://qmmp.ylsoftware.com/files/qmmp/"
                           (version-major+minor version) "/"
                           "qmmp-" version ".tar.bz2"))
       (sha256
        (base32 "0drskhf1lgnzmm6b51fvy25m551lbjikg7jw5dnll7ajicvpm7xm"))))
    (build-system qt-build-system)
    (arguments
     (list #:qtbase qtbase
           #:tests? #f ; there are no tests
           #:phases
           #~(modify-phases %standard-phases
               (add-after 'unpack 'set-paths
                 (lambda* (#:key inputs #:allow-other-keys)
                   (substitute* "src/plugins/Ui/skinned/skinreader.cpp"
                     (("\"(tar|unzip)\"" _ name)
                      (let ((file (string-append "/bin/" name)))
                        (string-append "\"" (search-input-file inputs file) "\"")))))))))
    (inputs
     ;; Missing optional inputs:
     ;; libsidplay2 ; input plugin
     ;; projectm ; visualization plugin
     (list alsa-lib
           curl
           enca
           faad2
           ffmpeg
           flac
           jack-2
           libarchive
           libbs2b
           libcddb
           libcdio-paranoia
           libgme
           libmad
           libshout
           libsndfile
           libvorbis
           libxmp
           opusfile
           opus
           pipewire
           pulseaudio
           qtmultimedia
           qttools
           soxr
           taglib
           tar ; for loading skins
           unzip ; for loading skins
           wavpack
           wildmidi))
    (native-inputs
     (list pkg-config))
    (home-page "https://qmmp.ylsoftware.com")
    (properties
     `((release-monitoring-url . "https://qmmp.ylsoftware.com/downloads.php")))
    (synopsis "Qt-based music player")
    (description "Music player with support for most common audio formats, and
plugins for various additional features such as visualization, effects and
online service integration.  In addition to a Qt-based interface it supports
Winamp/XMMS skins.")
    (license (list license:gpl2+ ; code
                   license:cc-by-sa4.0)))) ; src/plugins/Ui/skinned/glare

(define-public strawberry
  (package
    (name "strawberry")
    (version "1.0.21")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/strawberrymusicplayer/strawberry")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1ibs7x7i1zz2r13wg238c5bhr1j4x8vl7hvjg01vdl5hfrh2gk1i"))
              (modules '((guix build utils)
                         (ice-9 regex)))
              (snippet
               '(begin
                  (use-modules ((ice-9 regex)))
                  (for-each
                   (lambda (dir)
                     ;; TODO: The following dependencies are still bundled:
                     ;; - "singleapplication"
                     (let ((bundled '("singleapplication")))
                       (if (not
                            (string-match
                             (string-append ".?*(" (string-join bundled "|") ")")
                             dir))
                           (delete-file-recursively dir))))
                   (find-files "3rdparty"
                               (lambda (file stat)
                                 (string-match "^3rdparty/[^/]*$" file))
                               #:directories? #t))))))
    (build-system cmake-build-system)
    (arguments
     `(#:test-target "run_strawberry_tests"
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'wrap-program
           (lambda* (#:key outputs #:allow-other-keys)
             (wrap-program (search-input-file outputs "bin/strawberry")
               `("GST_PLUGIN_SYSTEM_PATH" ":" prefix
                 (,(getenv "GST_PLUGIN_SYSTEM_PATH"))))))
         (add-before 'check 'pre-check
           (lambda* (#:key native-inputs inputs #:allow-other-keys)
             (system (format #f "~a :1 &"
                             (search-input-file (or native-inputs inputs)
                                                "bin/Xvfb")))
             (setenv "DISPLAY" ":1")
             (setenv "HOME" (getcwd)))))))
    (native-inputs
     (list bash-minimal
           gettext-minimal
           googletest
           pkg-config
           qttools
           xorg-server-for-tests))
    (inputs
     (list alsa-lib
           boost
           chromaprint
           dbus
           fftw
           gdk-pixbuf
           glib
           gnutls
           gstreamer
           gst-plugins-base
           gst-plugins-good
           icu4c
           libcdio
           libebur128
           libmtp
           protobuf
           pulseaudio
           qtbase
           sqlite
           taglib))
    (home-page "https://www.strawberrymusicplayer.org/")
    (synopsis "Music player and library organizer")
    (description "Strawberry is a music player and music collection organizer.
It is a fork of Clementine aimed at music collectors and audiophiles.")
    (license (list
              ;; strawberry.
              license:gpl3+
              ;; singleapplication
              license:expat
              ;; icons.
              license:cc-by-sa3.0))))

(define-public cmus
  (package
    (name "cmus")
    (version "2.11.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/cmus/cmus")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1k50z99v2yqshycx6mbk4g5bsaalg5dgzjv3xvwq14abwkw44hli"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f ; cmus does not include tests
      #:phases
      #~(modify-phases %standard-phases
          (replace 'configure
            (lambda _
              ;; It's an idiosyncratic configure script that doesn't
              ;; understand --prefix=..; it wants prefix=.. instead.
              (invoke "./configure" (string-append "prefix=" #$output)))))))
    ;; TODO: cmus optionally supports the following formats, which haven't yet
    ;; been added to Guix:
    ;;
    ;; - Roar, libroar
    ;;
    ;; - DISCID_LIBS, apparently different from cd-discid which is included in
    ;;   Guix.  See <http://sourceforge.net/projects/discid/>
    (native-inputs
     (list pkg-config))
    (inputs
     (list alsa-lib
           ao
           elogind ;for MPRIS support
           faad2
           ffmpeg
           flac
           jack-1
           libcddb
           libcdio-paranoia
           libcue
           libmad
           libmodplug
           libmpcdec
           libsamplerate
           libvorbis
           ncurses
           opusfile
           pulseaudio
           wavpack))
     (home-page "https://cmus.github.io/")
     (synopsis "Small console music player")
     (description "Cmus is a small and fast console music player.  It supports
many input formats and provides a customisable Vi-style user interface.")
     (license license:gpl2+)))

(define-public denemo
  (package
    (name "denemo")
    (version "2.6.0")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://gnu/denemo/denemo-" version ".tar.gz"))
       (sha256
        (base32 "0pdmjij2635jbw2a24ivk1y4w0z58jbmq9vnz3qrfzw4d469grab"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          (replace 'check
            (lambda* (#:key inputs tests? #:allow-other-keys)
              ;; Tests require to write $HOME.
              (when tests?
                (setenv "HOME" (getcwd))
                ;; Replace hard-coded diff file name.
                (substitute* "tests/integration.c"
                  (("/usr/bin/diff")
                   (search-input-file inputs "/bin/diff")))
                ;; Denemo's documentation says to use this command to run its
                ;; test suite.
                (invoke "make" "-C" "tests" "check"))))
          (add-before 'build 'set-lilypond
            ;; This phase sets the default path for lilypond to its current
            ;; location in the store.
            (lambda* (#:key inputs #:allow-other-keys)
              (let* ((lilypond (search-input-file inputs "/bin/lilypond")))
                (substitute* "src/core/prefops.c"
                  (("g_string_new \\(\"lilypond\"\\);")
                   (string-append "g_string_new (\""
                                  lilypond
                                  "\");")))))))))
    (native-inputs
     (list diffutils
           `(,glib "bin")               ; for gtester
           gtk-doc/stable
           intltool
           libtool
           pkg-config))
    (inputs
     (list alsa-lib
           aubio
           evince
           fftw
           fluidsynth
           glib
           gtk+
           gtksourceview-3
           guile-2.0
           (librsvg-for-system)
           libsndfile
           libxml2
           lilypond
           portaudio
           portmidi
           rubberband))
    (synopsis "Graphical music notation, front-end to GNU Lilypond")
    (description
     "GNU Denemo is a music notation editor that provides a convenient
interface to the powerful music engraving program Lilypond.  Music can be
typed in using the computer keyboard, played in using a MIDI keyboard, or
even input via a microphone connected to the sound card.  The final product
is publication-quality music notation that is continuously generated in the
background while you work.")
    (home-page "https://www.denemo.org")
    (license license:gpl3+)))

(define-public dumb
  (package
    (name "dumb")
    (version "2.0.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/kode54/dumb")
             (commit version)))
       (sha256
        (base32 "1cnq6rb14d4yllr0yi32p9jmcig8avs3f43bvdjrx4r1mpawspi6"))
       (file-name (git-file-name name version))))
    (build-system cmake-build-system)
    (arguments
     '(#:tests? #f ; no check target
       #:configure-flags
       (list "-DBUILD_ALLEGRO4=OFF"
             "-DBUILD_SHARED_LIBS=ON"
             "-DBUILD_EXAMPLES=OFF")))
    (home-page "https://github.com/kode54/dumb")
    (synopsis "Module audio renderer library")
    (description
     "DUMB is a tracker library with support for IT, XM, S3M and MOD files.  It
targets maximum accuracy to the original formats, with low-pass resonant filters
for the IT files, accurate timing and pitching, and three resampling quality
settings (aliasing, linear interpolation and cubic interpolation).")
    ;; The DUMB license is a bit peculiar.
    ;; Clause 8 states that clauses 4, 5 and 6 are null and void, leaving only
    ;; the first three clauses for genuine consideration.
    ;; Clauses 1, 2 and 3 are analogous to clauses 1, 2 and 3 of the zlib
    ;; license, a known free software license.
    ;; Therefore, the DUMB license may be considered a free software license.
    (license (license:fsf-free "file://LICENSE"))))

(define-public dumb-allegro4
  (package
    (inherit dumb)
    (name "dumb-allegro4")
    (arguments
     (substitute-keyword-arguments (package-arguments dumb)
       ((#:configure-flags flags)
        `(cons "-DBUILD_ALLEGRO4=ON" ,(delete "-DBUILD_ALLEGRO4=OFF" flags)))))
    (inputs
     (list allegro-4))))

(define-public hydrogen
  (package
    (name "hydrogen")
    (version "1.2.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/hydrogen-music/hydrogen")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0qb16yn3igs95silvngwy5mjwlzsyz5axwbd3lz6pjhwbf81rn7d"))))
    (build-system cmake-build-system)
    (arguments
     `(#:test-target "tests"
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'fix-data-directory
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "CMakeLists.txt"
               (("/usr/share/pixmaps")
                (string-append (assoc-ref outputs "out")
                               "/share/pixmaps"))))))))
    (native-inputs
     (list cppunit
           pkg-config
           qttools-5))
    (inputs
     (list alsa-lib
           jack-1
           ;; ("ladspa" ,ladspa) ; require LADSPA_PATH to be set
           libarchive
           liblo
           libsndfile
           lrdf
           pulseaudio
           qtbase-5
           qtsvg-5
           qtxmlpatterns
           zlib))
    (home-page "http://hydrogen-music.org/")
    (synopsis "Drum machine")
    (description
     "Hydrogen is an advanced drum machine for GNU/Linux.  Its main goal is to
enable professional yet simple and intuitive pattern-based drum programming.")
    (license license:gpl2+)))

(define-public easytag
  (package
    (name "easytag")
    (version "2.4.3")
    (source (origin
             (method url-fetch)
              (uri (string-append "mirror://gnome/sources/easytag/2.4/easytag-"
                     version ".tar.xz"))
             (sha256
              (base32
               "1mbxnqrw1fwcgraa1bgik25vdzvf97vma5pzknbwbqq5ly9fwlgw"))))
    (build-system glib-or-gtk-build-system)
    (native-inputs
     `(("desktop-file-utils" ,desktop-file-utils)
       ("glib" ,glib "bin")
       ("intltool" ,intltool)
       ("itstool" ,itstool)
       ("pkg-config" ,pkg-config)
       ("xmllint" ,libxml2)))
    (inputs
     (list flac
           gtk+
           id3lib
           libid3tag
           libvorbis
           opusfile
           speex
           taglib
           wavpack
           yelp))
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-before 'configure 'configure-libid3tag
           (lambda* (#:key inputs #:allow-other-keys)
             ;; libid3tag does not provide a .pc file and EasyTAG's configure
             ;; script healivy relies on pkg-config.  Providing a temporary
             ;; local .pc file is easier than patching the configure script.
             (let* ((libid3tag (assoc-ref inputs "libid3tag")))
               (mkdir-p "pkgconfig")
               (with-output-to-file
                 "pkgconfig/id3tag.pc"
                 (lambda _
                   (format #t
                     "prefix=~@*~a~@
                      libdir=${prefix}/lib~@
                      includedir=${prefix}/include~@

                      Name: libid3tag~@
                      Description:~@
                      Version:~@
                      Libs: -L${libdir} -lid3tag -lz~@
                      Cflags: -I${includedir}~%"
                     libid3tag)))
               (setenv "PKG_CONFIG_PATH"
                 (string-append (getenv "PKG_CONFIG_PATH")
                   ":" (getcwd) "/pkgconfig"))
               #t)))
         (add-after 'unpack 'patch-makefile
           (lambda _
             (substitute* "Makefile.in"
               ;; The Makefile generates a test-desktop-file-validate.sh
               ;; script with /bin/sh hard-coded.
               (("/bin/sh") (which "sh"))
               ;; Don't create 'icon-theme.cache'.
               (("gtk-update-icon-cache") "true"))
             #t)))))
    (home-page "https://wiki.gnome.org/Apps/EasyTAG")
    (synopsis "Simple application for viewing and editing tags in audio files")
    (description
      "EasyTAG is an application for viewing and editing tags in audio files.
It supports MP3, MP2, MP4/AAC, FLAC, Ogg Opus, Ogg Speex, Ogg Vorbis,
MusePack, Monkey's Audio, and WavPack files.")
    (license license:gpl2+)))

(define-public extempore
  (package
    (name "extempore")
    (version "0.8.9")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/digego/extempore")
                    (commit (string-append "v" version))))
              (sha256
               (base32
                "16i12zl3g1zpx6lhg5pg821xirdf9rxx5m11b68inf83wn6hknhb"))
              (file-name (git-file-name name version))
              (patches (search-patches
                        "extempore-unbundle-external-dependencies.patch"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Remove bundled sources.
                  (map delete-file-recursively
                       '("src/pcre"))
                  #t))))
    (build-system cmake-build-system)
    (arguments
     `(#:configure-flags (list "-DJACK=ON"
                               "-DPACKAGE=ON"
                               (string-append "-DEXT_SHARE_DIR="
                                              (assoc-ref %outputs "out")
                                              "/share"))
       #:modules ((ice-9 match)
                  (guix build cmake-build-system)
                  (guix build utils))
       #:phases
       (modify-phases %standard-phases
         (add-after 'build 'build-aot-libs
           (lambda _
             (for-each (lambda (target)
                         (invoke "make" target))
                       '("aot_base"
                         "aot_math"
                         "aot_instruments"))
             #t))
         (add-after 'unpack 'patch-install-locations
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "CMakeLists.txt"
               (("EXT_SHARE_DIR=\"\\.\"\\)")
                "EXT_SHARE_DIR=\"${EXT_SHARE_DIR}/extempore\")")
               (("DESTINATION \"\\.\"\\)") "DESTINATION bin)")
               (("DESTINATION \"\\.\"\n") "DESTINATION share/extempore\n"))
             #t))
         (add-after 'unpack 'patch-directories
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "extras/extempore.el"
               (("\\(runtime-directory \\(concat default-directory \"runtime\"\\)\\)")
                (string-append "(runtime-directory \""
                               (assoc-ref outputs "out")
                               "/share/extempore/runtime"
                               "\")")))
             #t))
         (add-after 'unpack 'link-with-additional-libs
           (lambda _
             ;; The executable must be linked with libffi and zlib.
             (substitute* "CMakeLists.txt"
               (("target_link_libraries\\(extempore PRIVATE dl" line)
                (string-append line " ffi z")))
             #t))
         ;; FIXME: All examples that are used as tests segfault for some
         ;; unknown reason.
         (add-after 'unpack 'disable-broken-tests
           (lambda _
             (substitute* "CMakeLists.txt"
               (("extempore_add_example_as_test\\(.*") ""))
             #t))
         (add-after 'unpack 'hardcode-external-lib-paths
           (lambda* (#:key inputs #:allow-other-keys)
             (use-modules (ice-9 match))
             (for-each
              (match-lambda
                ((file-name lib pkg-name)
                 (substitute* (string-append "libs/external/" file-name ".xtm")
                   ((lib) (string-append (assoc-ref inputs pkg-name)
                                         "/lib/" lib)))))
              '(("assimp"    "libassimp.so"    "assimp")
                ("portmidi"  "libportmidi.so"  "portmidi")
                ("sndfile"   "libsndfile.so"   "libsndfile")
                ("fft"       "libkiss_fft.so"  "kiss-fft")
                ("stb_image" "libstb_image.so" "stb-image")
                ("nanovg"    "libnanovg.so"    "nanovg")
                ("glext"     "libGL.so"        "mesa")
                ("glfw3"     "libglfw.so"      "glfw")
                ("gl/glcore-directbind"   "libGL.so" "mesa")
                ("gl/glcompat-directbind" "libGL.so" "mesa")))
             #t))
         (add-after 'unpack 'use-own-llvm
           (lambda* (#:key inputs #:allow-other-keys)
             (setenv "EXT_LLVM_DIR" (assoc-ref inputs "llvm"))
             ;; Our LLVM builds shared libraries, so Extempore should use
             ;; those.
             (substitute* "CMakeLists.txt"
               (("CMAKE_STATIC_LIBRARY") "CMAKE_SHARED_LIBRARY"))
             #t))
         (add-after 'unpack 'fix-aot-compilation
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "CMakeLists.txt"
               ;; Extempore needs to be told where the runtime is to be found.
               ;; While we're at it we disable automatic tuning for a specific
               ;; CPU to make binary substitution possible.
               (("COMMAND extempore" prefix)
                (string-append prefix " --sharedir " (getcwd)
                               " --mcpu=generic --attr=none")))
             #t))
         (add-after 'unpack 'symlink-assets
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((assets (assoc-ref inputs "extempore-assets")))
               (symlink assets "assets")
               #t))))))
    (inputs
     `(("llvm"
        ,(package
           (inherit llvm-3.8)
           (name "llvm-for-extempore")
           (source
            (origin
              (method url-fetch)
              (uri (string-append "http://extempore.moso.com.au/extras/"
                                  "llvm-3.8.0.src-patched-for-extempore.tar.xz"))
              (sha256
               (base32
                "1svdl6fxn8l01ni8mpm0bd5h856ahv3h9sdzgmymr6fayckjvqzs"))))))
       ("extempore-assets"
        ,(let ((commit "0c9f32c18169b3fbc24bc1ad66283125b54a0c85")
               (revision "0")
               (version "0.0.0"))
           (origin
             (method git-fetch)
             (uri (git-reference
                   (url "https://github.com/extemporelang/extempore-assets")
                   (commit commit)))
             (file-name (git-file-name "extempore-assets"
                                       (git-version version revision commit)))
             (sha256
              (base32 "1pxmcbngd9qx8m71d5rfsmf4h31jnsnd3wjh8vb0rwskif22xz8l")))))
       ("libffi" ,libffi)
       ("jack" ,jack-1)
       ("libsndfile" ,libsndfile)
       ("glfw" ,glfw)
       ("apr" ,apr)
       ("stb-image"
        ,(let ((revision "1")
               (commit "152a250a702bf28951bb0220d63bc0c99830c498"))
           (package
             (inherit stb-image)
             (name "stb-image-for-extempore")
             (version (git-version "0" revision commit))
             (source
              (origin (method git-fetch)
                      (uri (git-reference
                            (url "https://github.com/extemporelang/stb")
                            (commit commit)))
                      (sha256
                       (base32
                        "0y0aa20pj9311x2ii06zg8xs34idg14hfgldqc5ymizc6cf1qiqv"))
                      (file-name (git-file-name name version))))
             (build-system cmake-build-system)
             (arguments `(#:tests? #f)) ;no tests included
             (inputs '()))))
       ("kiss-fft" ,kiss-fft-for-extempore)
       ("nanovg" ,nanovg-for-extempore)
       ("portmidi"
        ,(let ((version "217")
               (revision "0")
               (commit "8602f548f71daf5ef638b2f7d224753400cb2158"))
           (package
             (inherit portmidi)
             (name "portmidi-for-extempore")
             (version (git-version version revision commit))
             (source (origin
                       (method git-fetch)
                       (uri (git-reference
                             (url "https://github.com/extemporelang/portmidi")
                             (commit commit)))
                       (file-name (git-file-name name version))
                       (sha256
                        (base32
                         "1qidzl1s3kzhczzm96rcd2ppn27a97k2axgfh1zhvyf0s52d7m4w"))))
             (build-system cmake-build-system)
             (arguments `(#:tests? #f)) ;no tests
             (native-inputs '()))))
       ("assimp" ,assimp)
       ("alsa-lib" ,alsa-lib)
       ("portaudio" ,portaudio)
       ("mesa" ,mesa)
       ("pcre" ,pcre)
       ("zlib" ,zlib)))
    (native-inputs
     `(("perl" ,perl)
       ("emacs" ,emacs-no-x)))
    ;; Extempore refuses to build on architectures other than x86_64
    (supported-systems '("x86_64-linux"))
    (home-page "https://github.com/digego/extempore")
    (synopsis "Programming environment for live coding of multimedia")
    (description
     "Extempore is a programming language and runtime environment designed
with live programming in mind.  It supports interactive programming in a REPL
style, compiling and binding code just-in-time.  Although Extempore has its
roots in 'live coding' of audiovisual media art, it is suitable for any task
domain where dynamic run-time modifiability and good numerical performance are
required.  Extempore also has strong timing and concurrency semantics, which
are helpful when working in problem spaces where timing is important (such as
audio and video).")
    (license license:bsd-2)))

(define-public fluida-lv2
  (package
   (name "fluida-lv2")
   (version "0.6")
   (source
    (origin
      (method git-fetch)
      (uri
       (git-reference
        (url "https://github.com/brummer10/Fluida.lv2")
        (commit (string-append "v" version))
        (recursive? #t))) ; references specific commit of libxputty
      (file-name (git-file-name name version))
      (sha256
       (base32
        "1v0bh4wcx79y832qigc3my8ixq0r4ica6z5fg2rg946pkh20x1a2"))))
   (build-system gnu-build-system)
   (arguments
    `(#:tests? #f  ; no "check" target
      #:make-flags
      (list (string-append "INSTALL_DIR="
                           (assoc-ref %outputs "out") "/lib/lv2")
            "CC=gcc")
      #:phases
      (modify-phases %standard-phases
        (delete 'configure))))
   (inputs
    (list cairo libx11 lv2 fluidsynth))
   (native-inputs
    (list pkg-config))
   (home-page "https://github.com/brummer10/Fluida.lv2")
   (synopsis "Fluidsynth as an LV2 audio plugin")
   (description "Fluida is an audio plugin in the LV2 format that acts as
a frontend for fluidsynth.")
   (license license:gpl2+)))

(define-public surge-synth
  (package
   (name "surge-synth")
   (version "1.7.1")
   (source
     (origin
       (method git-fetch)
        (uri (git-reference
               (url "https://github.com/surge-synthesizer/surge")
               (commit (string-append "release_" version))
               (recursive? #t))) ; build system expects modules to be there
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1jhk8iaqh89dnci4446b47315v2lc8gclraygk8m9jl20zpjxl0l"))))
   (build-system cmake-build-system)
   (arguments
    `(#:tests? #f ; no tests included
      #:phases
      (modify-phases %standard-phases
        (add-after 'unpack 'replace-python
          (lambda* (#:key inputs outputs #:allow-other-keys)
            (substitute* "CMakeLists.txt"
              ((" python ")
               (string-append " " (assoc-ref inputs "python")
                              "/bin/python3 ")))
            #t))
        (add-after 'unpack 'fix-data-directory-name
          (lambda* (#:key inputs outputs #:allow-other-keys)
            (substitute* "src/common/SurgeStorage.cpp"
              (("/usr") (assoc-ref outputs "out")))
            #t))
        (replace 'install ; no install target
          (lambda* (#:key inputs outputs #:allow-other-keys)
            (let* ((src (assoc-ref inputs "source"))
                   (out (assoc-ref outputs "out"))
                   (share (string-append out "/share"))
                   (lib (string-append out "/lib"))
                   (lv2 (string-append lib "/lv2"))
                   (vst3 (string-append lib "/vst3")))
              (mkdir-p lv2)
              (mkdir-p vst3)
              ;; Install LV2 plugin.
              (copy-recursively "surge_products/Surge.lv2"
                                (string-append lv2 "/Surge.lv2"))
              ;; Install VST3 plugin.
              (copy-recursively "surge_products/Surge.vst3"
                                (string-append vst3 "/Surge.vst3"))
              ;; Install data.
              (copy-recursively (string-append src "/resources/data")
                                (string-append share "/Surge"))
              #t))))))
   (inputs
    (list cairo
          libxkbcommon
          python
          xcb-util
          xcb-util-cursor
          xcb-util-keysyms))
   (native-inputs
    (list pkg-config))
   (home-page "https://surge-synthesizer.github.io/")
   (synopsis "Synthesizer plugin")
   (description
    "Surge is a subtractive hybrid digital synthesizer.  Each patch contains
two @dfn{scenes} which are separate instances of the entire synthesis
engine (except effects) that can be used for layering or split patches.")
   (license license:gpl3+)))

(define-public klick
  (package
    (name "klick")
    (version "0.12.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://das.nasophon.de/download/klick-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0hmcaywnwzjci3pp4xpvbijnnwvibz7gf9xzcdjbdca910y5728j"))))
    (build-system scons-build-system)
    (arguments
     `(#:scons-flags (list (string-append "PREFIX=" %output))
       #:scons ,scons-python2
       #:tests? #f ; no "check" target
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'be-permissive
           (lambda _
             (substitute* "SConstruct"
               (("'-Wall'") "'-Wall', '-fpermissive'"))
             #t))
         (add-after 'unpack 'replace-removed-scons-syntax
           (lambda _
             (substitute* "SConstruct"
               (("BoolOption") "BoolVariable")
               (("PathOption") "PathVariable")
               (("Options") "Variables"))
             #t)))))
    (inputs
     (list boost
           jack-1
           libsndfile
           libsamplerate
           liblo
           rubberband))
    (native-inputs
     (list pkg-config))
    (home-page "http://das.nasophon.de/klick/")
    (synopsis "Metronome for JACK")
    (description
     "klick is an advanced command-line based metronome for JACK.  It allows
you to define complex tempo maps for entire songs or performances.")
    (license license:gpl2+)))

(define-public glyr
  (package
    (name "glyr")
    (version "1.0.10")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/sahib/glyr")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1miwbqzkhg0v3zysrwh60pj9sv6ci4lzq2vq2hhc6pc6hdyh8xyr"))))
    (build-system cmake-build-system)
    (arguments
     '(#:configure-flags '("-DTEST=true")
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-tests
           (lambda _
             (substitute* "spec/capi/check_api.c"
               (("fail_unless \\(c != NULL,\"Could not load www.google.de\"\\);")
                ""))
             #t))
         (replace 'check
           (lambda* (#:key tests? #:allow-other-keys)
             (when tests?
               ;; capi tests
               (invoke "bin/check_api")
               ;; (invoke "bin/check_opt") TODO Very dependent on the network
               (invoke "bin/check_dbc"))

             ;; TODO Work out how to run the spec/providers Python tests
             #t)))))
    (inputs
     (list glib curl sqlite))
    (native-inputs
     (list pkg-config check))
    (home-page "https://github.com/sahib/glyr")
    (synopsis "Search engine for music related metadata")
    (description
     "Glyr comes both in a command-line interface tool (@command{glyrc}) and
as a C library (libglyr).

The sort of metadata glyr is searching (and downloading) is usually the data
you see in your musicplayer.  And indeed, originally it was written to serve
as internally library for a musicplayer, but has been extended to work as a
standalone program which is able to download cover art, lyrics, photos,
biographies, reviews and more.")
    (license license:lgpl3+)))

(define-public lingot
  (package
    (name "lingot")
    (version "1.1.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/ibancg/lingot")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "04lcjzfhddbyskxr2068z609y6x0s2gjx1wl78w0dkxdi459zrn9"))))
    (build-system gnu-build-system)
    (native-inputs
     (list autoconf
           automake
           cunit
           `(,glib "bin") ; for glib-compile-resources
           intltool
           libtool
           pkg-config))
    (inputs
     (list alsa-lib
           fftw
           gtk+
           jack-2
           json-c
           pulseaudio))
    (home-page "https://lingot.nongnu.org/")
    (synopsis "Accurate & configurable musical instrument tuner")
    (description
     "LINGOT is a musical instrument tuner.  It's accurate, easy to use, and
highly configurable.  Originally conceived to tune electric guitars, it can now
be used to tune other instruments.

It looks like an analogue tuner, with a gauge indicating the relative shift to a
certain note, determined automatically as the closest note to the estimated
frequency.")
    (license license:gpl2+)))

(define-public ninjas2
  (package
    (name "ninjas2")
    (version "0.2.0")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://github.com/clearly-broken-software/ninjas2")
         (commit (string-append "v" version))
         ;; Bundles a specific commit of the DISTRHO plugin framework.
         (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1kwp6pmnfar2ip9693gprfbcfscklgri1k1ycimxzlqr61nkd2k9"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ;no tests
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "CC=" ,(cc-for-target)))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ;no configure target
         (replace 'install              ;no install target
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bin (string-append out "/bin"))
                    (lv2 (string-append out "/lib/lv2")))
               ;; Install LV2.
               (for-each
                (lambda (file)
                  (copy-recursively file
                                    (string-append lv2 "/" (basename file))))
                (find-files "bin" "\\.lv2$" #:directories? #t))
               ;; Install executables.
               (for-each
                 (lambda (file)
                   (install-file file bin))
                 (find-files "bin"
                             (lambda (name stat)
                               (and
                                 (equal? (dirname name) "bin")
                                 (not (string-suffix? ".so" name))
                                 (not (string-suffix? ".lv2" name))))))
               #t))))))
    (inputs
     (list fftwf
           jack-1 ; for the standalone JACK application
           libsamplerate
           mesa
           libsndfile))
    (native-inputs
     (list ladspa lv2 pkg-config))
    (synopsis "Sample slicer audio plugin")
    (description
     "Ninjas 2 is a rewrite of the Ninjas sample slicer audio plugin.
Its goal is to be an easy to use sample slicer with quick slicing of samples
and auto-mapping slices to MIDI note numbers.")
    (home-page "https://github.com/clearly-broken-software/ninjas2")
    (license license:gpl3+)))

(define-public lilypond
  (package
    (name "lilypond")
    (version "2.24.4")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "http://lilypond.org/download/sources/"
                           "v" (version-major+minor version) "/"
                           "lilypond-" version ".tar.gz"))
       (sha256
        (base32 "073qa7m9xkghad4x37rxb9v45vp4vfmsylwnjzhj17y7f4ss0vz9"))))
    (build-system gnu-build-system)
    (arguments
      (list #:tests? #f                      ;out-test/collated-files.html fails
            #:out-of-source? #t
            #:configure-flags
            #~(list "--disable-documentation" "GUILE_FLAVOR=guile-3.0")
            #:phases
            #~(modify-phases %standard-phases
                (add-after 'unpack 'fix-path-references
                  (lambda* (#:key inputs #:allow-other-keys)
                    (substitute* "scm/backend-library.scm"
                      (("\\(search-executable '\\(\"gs\"\\)\\)")
                       (string-append "\"" (search-input-file inputs "bin/gs") "\""))
                      (("\"/bin/sh\"")
                       (string-append "\"" (search-input-file inputs "bin/sh") "\""))))))))
    (inputs
     (list extractpdfmark
           font-dejavu
           font-tex-gyre
           fontconfig
           freetype
           ghostscript
           guile-3.0
           pango
           python))
    (native-inputs
     (list bison
           dblatex/stable
           flex
           fontforge
           gettext-minimal
           imagemagick
           netpbm
           perl
           pkg-config
           rsync
           texinfo
           texi2html-1.82
           (texlive-updmap.cfg
            (list texlive-cyrillic
                  texlive-epsf
                  texlive-fontinst
                  texlive-lh
                  texlive-lm
                  texlive-metapost
                  texlive-t1utils))
           zip))
    (home-page "https://lilypond.org")
    (synopsis "Music typesetting")
    (description
     "GNU LilyPond is a music typesetter, which produces high-quality sheet
music.  Music is input in a text file containing control sequences which are
interpreted by LilyPond to produce the final document.  It is extendable with
Guile.")
    (license license:gpl3+)

    ;; On armhf and mips64el, building the documentation sometimes leads to
    ;; more than an hour of silence, so double the max silent time.
    (properties `((max-silent-time . 7200)))))

(define-public emacs-lilypond-mode
  (package
    (name "emacs-lilypond-mode")
    (version (package-version lilypond))
    (source (package-source lilypond))
    (build-system emacs-build-system)
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'expand-load-path 'change-working-directory
            (lambda _ (chdir "elisp"))))))
    (home-page (package-home-page lilypond))
    (synopsis "Major mode for editing GNU LilyPond music scores")
    (description
     "This package provides an Emacs major mode for editing GNU LilyPond music
scores.")
    (license (package-license lilypond))))

(define-public music21
  (package
    (name "music21")
    (version "7.1.0")
    (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "music21" version))
        (sha256
          (base32 "17v2id8qm99xqymqsdczq173fmbdha4w109ahh8j1d9l5a7mqc86"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (replace 'check
           (lambda* (#:key tests? inputs outputs #:allow-other-keys)
             (when tests?
               (add-installed-pythonpath inputs outputs)
               ;; See: https://github.com/cuthbertLab/music21/issues/1164
               (invoke "python" "-m" "music21.stream.tests")))))))
    (propagated-inputs
      (list python-chardet python-joblib python-more-itertools
            python-webcolors))
    (home-page "https://web.mit.edu/music21/")
    (synopsis "Toolkit for Computational Musicology")
    (description
     "Music21 is a set of tools for helping scholars and other active
listeners answer questions about music quickly and simply.")
    ;; Software is dual-licensed.
    (license (list license:bsd-3 license:lgpl3+))))

(define-public abjad
  (package
    (name "abjad")
    ;; XXX: The latest version which supports current Guix's Python 3.9.9.
    (version "3.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/Abjad/abjad")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0s63vk9fifp0im9c31kb9ck39mbaxhrls993d8fvg0nkg41z1jnz"))))
    (build-system pyproject-build-system)
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          ;; XXX. Permit newer version of uqbar, remove for >3.4. Remove in
          ;; the next update.
          (add-after 'unpack 'loosen-requirements
            (lambda _
              (substitute* "setup.py"
                ((", <0\\.5\\.0") ""))))
          ;; FIXME: Check why it's failing with this: Note: compilation failed
          ;; and \version outdated, did you update input syntax with
          ;; convert-ly?
          (add-before 'check 'disable-failing-tests
            (lambda _
              (substitute* "tests/test_ext_sphinx.py"
                (("def test_ext_sphinx_01") "def __off_test_ext_sphinx_01")))))))
    (inputs
     (list lilypond))
    (native-inputs
     (list python-flake8
           python-isort
           python-mypy
           python-pytest
           python-pytest-cov
           python-pytest-helpers-namespace
           python-six
           python-sphinx-autodoc-typehints))
    (propagated-inputs
     (list python-quicktions
           python-ply
           python-roman
           python-uqbar))
    (home-page "https://abjad.github.io")
    (synopsis "Python API for building LilyPond files")
    (description
     "Abjad helps composers build up complex pieces of music notation in iterative
and incremental ways.  Use Abjad to create a symbolic representation of all the notes,
rests, chords, tuplets, beams and slurs in any score.  Because Abjad extends the Python
programming language, you can use Abjad to make systematic changes to music as you work.
Because Abjad wraps the LilyPond music notation package, you can use Abjad to control the
typographic detail of symbols on the page.")
    (license license:expat)))

(define-public abjad-ext-rmakers
  (package
    (name "abjad-ext-rmakers")
    (version "3.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
         (url "https://github.com/Abjad/abjad-ext-rmakers")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0wma9vzn42h1rhbzh2dwjsrzjhsi1yqdgn6wx1dfk78vaki6prd8"))))
    (build-system pyproject-build-system)
    (native-inputs
     (list lilypond
           python-black
           python-flake8
           python-iniconfig
           python-isort
           python-mypy
           python-pytest
           python-pytest-cov
           python-pytest-helpers-namespace
           python-sphinx-autodoc-typehints))
    (propagated-inputs
     (list abjad))
    (home-page "https://abjad.github.io")
    (synopsis "Abjad rhythm-maker extension package")
    (description
     "@code{abjad-ext-rmakers} includes a collection of classes for creating and
and manipulating rhythms such as accelerandi, taleas, and more.")
    (license license:expat)))

(define-public abjad-ext-nauert
  (package
    (name "abjad-ext-nauert")
    (version "3.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
         (url "https://github.com/Abjad/abjad-ext-nauert")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "05hr2lr6myzi493k8vc19cqzraxxnbdwlckwbnras19l5g5ns38x"))))
    (build-system pyproject-build-system)
    (native-inputs
     (list lilypond
           python-black
           python-flake8
           python-iniconfig
           python-isort
           python-mypy
           python-pytest
           python-pytest-cov
           python-pytest-helpers-namespace
           python-sphinx-autodoc-typehints))
    (propagated-inputs
     (list abjad))
    (home-page "https://abjad.github.io")
    (synopsis "Abjad quantization extension, based on Paul Nauert's Q-Grids")
    (description
     "@code{abjad-ext-nauert} provides classes for dealing with composer and
music theorist Paul Nauert's quantization grids or Q-Grids, for short.")
    (license license:expat)))

(define-public abjad-ext-ipython
  (package
    (name "abjad-ext-ipython")
    (version "3.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
         (url "https://github.com/Abjad/abjad-ext-ipython")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1vv0alpiz0gf5lgjfvlh4km72dvrxfqkwzxl3k4amzci3i0jzbs2"))))
    (build-system python-build-system)
    (arguments
     ;; UnboundLocalError: local variable 'output_path' referenced before assignment
     `(#:tests? #f
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'loosen-requirements
           (lambda _
             (substitute* "setup.py"
               ;; Don't require a specific version of abjad.
               (("abjad==")
                "abjad>="))))
         (replace 'check
           (lambda* (#:key tests? inputs outputs #:allow-other-keys)
             (when tests?
               (setenv "HOME" (getcwd))
               (add-installed-pythonpath inputs outputs)
               ;; From 'make jupyter-test'
               (invoke "jupyter" "nbconvert" "--to=html"
               "--ExecutePreprocessor.enabled=True" "tests/test.ipynb")))))))
    (native-inputs
     (list lilypond
           python-black
           python-flake8
           python-iniconfig
           python-isort
           python-mypy
           python-pytest
           python-pytest-cov
           python-pytest-helpers-namespace))
    (propagated-inputs
     (list abjad jupyter python-sphinx-autodoc-typehints))
    (home-page "https://abjad.github.io")
    (synopsis "Abjad IPython Extension")
    (description
     "@code{abjad-ext-ipython} makes it possible to embed music notation in
@code{jupyter} notebooks.")
    (license license:expat)))

(define-public non-sequencer
  ;; The latest tagged release is three years old and uses a custom build
  ;; system, so we take the last commit.
  (let ((commit "257ec5951e7d4086344d98c99ebbe569f7c31211")
        (revision "5"))
    (package
      (name "non-sequencer")
      (version (git-version "1.9.5" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/falkTX/non/")
                      (commit commit)))
                (sha256
                 (base32
                  "0h6ycm3nbb5lvjvhymz5xlj8wqm3z3ggzn4ghmw6xyzd0l7c3m8b"))
                (file-name (git-file-name name version))))
      (build-system waf-build-system)
      (arguments
       `(#:tests? #f ;no "check" target
         #:configure-flags
         (list "--project=sequencer"
               ;; Disable the use of SSE unless on x86_64.
               ,@(if (not (string-prefix? "x86_64" (or (%current-target-system)
                                                       (%current-system))))
                     '("--disable-sse")
                     '()))
         #:phases
         (modify-phases %standard-phases
           (add-before 'configure 'setup-waf
             (lambda* (#:key inputs #:allow-other-keys)
               (let ((waf (assoc-ref inputs "python-waf")))
                 (copy-file (string-append waf "/bin/waf") "waf")))))))
      (inputs
       (list jack-1 libsigc++-2 liblo ntk))
      (native-inputs
       (list python-waf pkg-config))
      (home-page "https://non.tuxfamily.org/wiki/Non%20Sequencer")
      (synopsis "Pattern-based MIDI sequencer")
      (description
       "The Non Sequencer is a powerful, lightweight, real-time,
pattern-based MIDI sequencer.  It utilizes the JACK Audio Connection Kit for
MIDI I/O and the NTK GUI toolkit for its user interface.  Everything in Non
Sequencer happens on-line, in real-time.  Music can be composed live, while the
transport is rolling.")
      (license license:gpl2+))))

(define-public new-session-manager
  (package
    (name "new-session-manager")
    (version "1.6.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/jackaudio/new-session-manager")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0ihngqbnc50izfy6x7nhgaah00byk8nl6n5smxbyb8fkhm2s8p21"))))
    (build-system meson-build-system)
    (native-inputs (list pkg-config))
    (inputs (list fltk jack-2 liblo libx11))
    (home-page "https://new-session-manager.jackaudio.org/")
    (synopsis "Music production session management tool")
    (description "New Session Manager (NSM) is a tool to assist music
production by grouping standalone programs into sessions.  It can be used
create a session, or project, and add programs to it and then use commands to
save, start/stop, hide/show all programs at once, or individually.  The
session can be interrupted and easily resumed at a later time.")
    (license license:gpl3+)))

(define-public non-session-manager
  (package (inherit non-sequencer)
    (name "non-session-manager")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=session-manager"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     (list jack-1 liblo ntk))
    (native-inputs
     (list python-waf pkg-config))
    (home-page "https://non.tuxfamily.org/nsm/")
    (synopsis "Audio session management")
    (description
     "The Non Session Manager is an API and an implementation for audio
session management.  NSM clients use a well-specified OSC protocol to
communicate with the session management daemon.")
    (license license:gpl2+)
    (properties `((superseded . ,new-session-manager)))))

(define-public non-mixer
  (package (inherit non-sequencer)
    (name "non-mixer")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=mixer"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     (list jack-1 liblo ladspa lrdf ntk lv2 lilv))
    (native-inputs
     (list python-waf pkg-config))
    (home-page "https://non.tuxfamily.org/wiki/Non%20Mixer")
    (synopsis "Modular digital audio mixer")
    (description
     "The Non Mixer is a powerful, reliable and fast modular digital audio
mixer.  It utilizes JACK for inter-application audio I/O and the NTK GUI
toolkit for a fast and lightweight user interface.  Non Mixer can be used
alone or in concert with Non Timeline and Non Sequencer to form a complete
studio.")
    (license license:gpl2+)))

(define-public non-timeline
  (package (inherit non-sequencer)
    (name "non-timeline")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=timeline"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     (list jack-1 liblo libsndfile ntk))
    (native-inputs
     (list python-waf pkg-config))
    (home-page "https://non.tuxfamily.org/wiki/Non%20Timeline")
    (synopsis "Modular digital audio timeline arranger")
    (description
     "The Non Timeline is a powerful, reliable and fast modular digital audio
timeline arranger.  It utilizes JACK for inter-application audio I/O and the
NTK GUI toolkit for a fast and lightweight user interface.  Non Timeline can
be used alone or in concert with Non Mixer and Non Sequencer to form a
complete studio.")
    (license license:gpl2+)))

(define-public tascam-gtk
  ;; This commit represents the latest version at the time of this writing.
  (let ((commit "69fb86f31efcdb27c7854d2a190457aab42b337a")
        (revision "0"))
    (package
      (name "tascam-gtk")
      (version (git-version "0.4" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/onkelDead/tascam-gtk")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "05fbs5s24nwr6b10jgjhsfi7aj6y65kcickmygl7g84xvsnykdb0"))))
      (build-system gnu-build-system)
      (inputs
       (list liblo gtkmm-3 alsa-lib libxml++-3))
      (native-inputs
       (list `(,glib "bin") pkg-config))
      (home-page "https://github.com/onkelDead/tascam-gtk")
      (synopsis "GTK+ based application to control Tascam US-16x08 DSP mixer")
      (description "This is a mixer application to control the Tascam US-16x08
audio interface.  This device contains about 280 control elements and this
mixer application aims to provide comfortable access to the DSP effects the
device supports.")
      (license license:expat))))

(define-public bsequencer
  (package
    (name "bsequencer")
    (version "1.8.10")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/sjaehn/BSEQuencer")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0w3m7x0619iq8rafcy0bal4gwh9m9h7iq93q7gkpxhv6dq58ix6l"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "CC=" ,(cc-for-target))
             (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:tests? #f                      ; there are none
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))
    (inputs
     (list cairo lv2 libx11))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/sjaehn/BSEQuencer")
    (synopsis "Multi-channel MIDI step sequencer LV2 plugin")
    (description
     "This package provides a multi-channel MIDI step sequencer LV2 plugin
with a selectable pattern matrix size.")
    (license license:gpl3+)))

(define-public bchoppr
  (package
    (inherit bsequencer)
    (name "bchoppr")
    (version "1.12.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/sjaehn/BChoppr")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1jfp98qa0frmdybrg71fn8wxn1b3ginkbkcg9cz9y83j1m0jqrif"))))
    (synopsis "Audio stream-chopping LV2 plugin")
    (description "B.Choppr cuts the audio input stream into a repeated
sequence of up to 16 chops.  Each chop can be leveled up or down (gating).
B.Choppr is the successor of B.Slizr.")
    (home-page "https://github.com/sjaehn/BChoppr")
    (license license:gpl3+)))

(define-public bshapr
  (package
    (inherit bsequencer)
    (name "bshapr")
    (version "0.13")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/sjaehn/BShapr")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1qr3fxqcplgb6iqi2vxc27jghhv6qsidww2by15zb2vs34yh73pl"))))
    (synopsis "Beat/envelope shaper LV2 plugin")
    (description "B.Shapr is a beat/envelope shaper LV2 plugin.")
    (home-page "https://github.com/sjaehn/BShapr")
    (license license:gpl3+)))

(define-public bjumblr
  (package
    (inherit bsequencer)
    (name "bjumblr")
    (version "1.6.8")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/sjaehn/BJumblr")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "00fgax8aqqggs54pjpagw5pc30kgxaghh8mrzpqwhs06cnchcam9"))))
    (inputs
     (list cairo libsndfile lv2))
    (synopsis "Pattern-controlled audio stream/sample re-sequencer LV2 plugin")
    (description "B.Jumblr is a pattern-controlled audio stream / sample
re-sequencer LV2 plugin.")
    (home-page "https://github.com/sjaehn/BJumblr")
    (license license:gpl3+)))

(define-public bschaffl
  (package
    (inherit bsequencer)
    (name "bschaffl")
    (version "1.4.8")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/sjaehn/BSchaffl")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1kfc75xhj365fwl8cbvhg5chwz1snzcvf4929flds02ljylc7k6d"))))
    (inputs
     `(("cairo" ,cairo)
       ("fontconfig" ,fontconfig)
       ("libsndfile" ,libsndfile)
       ("libx11" ,libx11)
       ("lv2" ,lv2)))
    (home-page "https://github.com/sjaehn/BSchaffl")
    (synopsis "Pattern-controlled MIDI amp & time stretch LV2 plugin")
    (description "This package provides an LV2 plugin that allows for
pattern-controlled MIDI amp & time stretching to produce shuffle / swing
effects.

Key features include:

@enumerate
@item MIDI velocity amplification and timing manipulation plugin
@item Swing and shuffle rhythms
@item Pre-generator dynamics
@item Tempo rubato
@item Pattern (sliders) or shape-controlled
@item MIDI filters
@item Smart quantization
@end itemize
")
    (license license:gpl3+)))

(define-public solfege
  (package
    (name "solfege")
    (version "3.23.5pre2")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://git.savannah.gnu.org/git/solfege.git")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1lmzp4kn0xh58yc8gzriz1i34g5qaa2xxrxzpmr7v9jyk19dqmcm"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                       ;xmllint attempts to download DTD
      #:test-target "test"
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'set-version
            (lambda _
              (substitute* "autogen.sh"
                (("python3 -c \"import tools.*create_versions_file.*")
                 (string-append "echo \"version_info = '"
                                #$version "' > solfege/_version.py\"\n")))
              (substitute* "Makefile.in"
                (("\\$\\(PYTHON) -c \"import tools.*create_versions_file.*")
                 "true\n"))
              (substitute* "solfege/buildinfo.py.in"
                (("from solfege._version import version_info")
                 "version_info = {'git_sha': 'N/A'}"))))
          (add-after 'unpack 'fix-configuration
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "default.config"
                (("/usr/bin/aplay") "aplay")
                (("/usr/bin/timidity") "timidity")
                (("/usr/bin/mpg123") "mpg123")
                (("/usr/bin/ogg123") "ogg123"))))
          (add-before 'build 'patch-python-shebangs
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Two python scripts begin with a Unicode BOM, so patch-shebang
              ;; has no effect.
              (substitute* '("solfege/parsetree.py"
                             "solfege/presetup.py")
                (("#!/usr/bin/python")
                 (string-append "#!" search-input-file inputs "bin/python")))))
          (add-before 'build 'add-sitedirs
            ;; .pth files are not automatically interpreted unless the
            ;; directories containing them are added as "sites".  The
            ;; directories are then added to those in the PYTHONPATH.  This is
            ;; required for the operation of pygtk and pygobject.
            (lambda _
              (substitute* "run-solfege.py"
                (("import os")
                 "import os, site
for path in [path for path in sys.path if 'site-packages' in path]: site.addsitedir(path)"))))
          (add-before 'build 'adjust-config-file-prefix
            (lambda _
              (substitute* "run-solfege.py"
                (("prefix = os.path.*$")
                 (string-append "prefix = " #$output)))))
          (add-after 'install 'wrap-program
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Make sure 'solfege' runs with the correct PYTHONPATH.
              (let ((path (getenv "GUIX_PYTHONPATH")))
                (wrap-program (search-input-file outputs "bin/solfege")
                  `("GUIX_PYTHONPATH" ":" prefix (,path)))))))))
    (inputs
     (list bash-minimal
           python-wrapper
           python-pygobject
           gettext-minimal
           gtk+
           lilypond))
    (native-inputs
     (list autoconf
           automake
           pkg-config
           txt2man
           libxml2                      ; for tests
           ghostscript
           texinfo))
    (home-page "https://www.gnu.org/software/solfege/")
    (synopsis "Ear training")
    (description
     "GNU Solfege is a program for practicing musical ear-training.  With it,
you can practice your recognition of various musical intervals and chords.  It
features a statistics overview so you can monitor your progress across several
sessions.  Solfege is also designed to be extensible so you can easily write
your own lessons.")
    (license license:gpl3+)))

(define-public powertabeditor
  (package
    (name "powertabeditor")
    (version "2.0.0-alpha19")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/powertab/powertabeditor")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1fbrfw1ky57nms47pcfdrrwpa2jmgc8vgc68sz96wkvs49zzm5d1"))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:phases
      '(modify-phases %standard-phases
         (replace 'check
           (lambda* (#:key tests? #:allow-other-keys)
             (when tests? (invoke "bin/pte_tests")))))))
    (inputs
     (list alsa-lib
           boost
           minizip
           nlohmann-json
           pugixml
           qtbase-5
           qttools-5 ;for Qt5LinguistTools
           rtmidi
           timidity++
           zlib))
    (native-inputs
     (list doctest pkg-config))
    (home-page "https://github.com/powertab/powertabeditor")
    (synopsis "Guitar tablature editor")
    (description
     "Power Tab Editor 2.0 is the successor to the famous original Power Tab
Editor.  It is compatible with Power Tab Editor 1.7 and Guitar Pro.")
    (license license:gpl3+)))

(define-public jalv-select
  (package
    (name "jalv-select")
    (version "1.3")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/jalv_select")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "15yanq1wra0hyh6x72ji7pk562iddg476g3vksj495x91zhnl6vm"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'ignore-PATH
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "jalv.select.cpp"
               (("echo \\$PATH.*tr ':'.*xargs ls")
                (string-append "ls -1 " (assoc-ref inputs "jalv") "/bin"))))))))
    (inputs
     (list lilv lv2 jalv gtkmm-2))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/brummer10/jalv_select")
    (synopsis "GUI to select LV2 plugins and run them with jalv")
    (description
     "The jalv.select package provides a graphical user interface allowing
users to select LV2 plugins and run them with jalv.")
    (license license:public-domain)))

(define-public petri-foo
  (package
    (name "petri-foo")
    (version "0.1.87")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/petri-foo/Source"
                                  "/petri-foo-" version ".tar.bz2"))
              (sha256
                (base32
                 "0b25iicgn8c42487fdw32ycfrll1pm2zjgy5djvgw6mfcaa4gizh"))
              (modules '((guix build utils)))
              ;; https://github.com/petri-foo/Petri-Foo/pull/43
              (snippet '(begin
                          (substitute* "gui/gui.c"
                            (("#include \\\"waveform\\.h\\\"")
                             (string-append
                               "#include \"waveform.h\""
                               "\n\nGtkRecentManager *recent_manager;")))
                          (substitute* "gui/gui.h"
                            (("GtkRecentManager \\*recent_manager;")
                             "extern GtkRecentManager *recent_manager;"))))))
    (build-system cmake-build-system)
    (arguments (list #:tests? #f)) ;no test target
    (native-inputs (list pkg-config))
    (inputs (list alsa-lib
                  glib
                  jack-1
                  libgnomecanvas
                  liblo
                  libsamplerate
                  libsndfile
                  libxml2
                  openssl))
    (home-page "https://petri-foo.sourceforge.net/")
    (synopsis "Audio sampler for JACK")
    (description
     "Petri-Foo is a fork of the Specimen sampler project intended to run under
a JACK session.")
    (license license:gpl2)))

(define-public mixxx
  (package
    (name "mixxx")
    (version "2.4.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/mixxxdj/mixxx")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0cfdgrxfhck6cg4j9mb2rdp06n57kca1403qw92c3pmk1y05grq4"))
       (modules '((guix build utils)))
       (snippet
        ;; Delete libraries that we already have or don't need.
        ;; TODO: try to unbundle more (see lib/).
        `(begin
           (let ((third-parties '("apple" "hidapi")))
             (with-directory-excursion "lib"
               (map (lambda (third-party)
                      (delete-file-recursively third-party)) third-parties)))
           #t))))
    (build-system qt-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases
                  (add-after 'unpack 'disable-bugged-test
                    ;; This test regularly fails and aborts the build process, hence it
                    ;; was disabled (no impact on functionality).  It appears this is a
                    ;; problem for some upstream as well, as indicated by:
                    ;; https://github.com/mixxxdj/mixxx/issues/12887 (featuring a
                    ;; reference to another issue related to the same problem).
                    (lambda _
                      (substitute* "src/test/soundproxy_test.cpp"
                        (("TEST_F\\(SoundSourceProxyTest, firstSoundTest\\)")
                         "TEST_F(SoundSourceProxyTest, DISABLED_firstSoundTest)"))))
                  (add-after 'install 'wrap-executable
                    (lambda* (#:key inputs outputs #:allow-other-keys)
                      (let* ((out (assoc-ref outputs "out"))
                             (faad2 (assoc-ref inputs "faad2")))
                        (wrap-program (string-append out "/bin/mixxx")
                          `("LD_LIBRARY_PATH" ":" prefix
                            ,(list (string-append faad2 "/lib"))))))))))
    (native-inputs (list benchmark googletest python-wrapper qttools-5
                         xorg-server-for-tests))
    (inputs (list bash-minimal
                  chromaprint
                  faad2
                  ffmpeg
                  fftw
                  flac
                  glu
                  hidapi
                  jack-1
                  lame
                  libdjinterop
                  libebur128
                  libid3tag
                  libkeyfinder
                  libmad
                  libmp4v2
                  libmodplug
                  libsndfile
                  libshout
                  ;; XXX: Mixxx complains the libshout-idjc package suffers from bug
                  ;; lp1833225 and refuses to use it.  Use the bundle for now.
                  libshout-idjc
                  libusb
                  libvorbis
                  lilv
                  mp3guessenc
                  openssl
                  opusfile
                  portaudio
                  portmidi
                  protobuf
                  qtbase-5
                  qtdeclarative-5
                  qtkeychain
                  qtscript
                  qtsvg-5
                  qtx11extras
                  rubberband
                  soundtouch
                  sqlite
                  taglib
                  upower
                  vamp
                  wavpack
                  c++-gsl))
    (home-page "https://mixxx.org/")
    (synopsis "DJ software to perform live mixes")
    (description "Mixxx is a DJ software.  It integrates the tools DJs need to
perform creative live mixes with digital music files.")
    (license license:gpl2+)))

(define-public synthv1
  (package
    (name "synthv1")
    (version "1.1.3")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/synthv1/synthv1/" version
                              "/synthv1-" version ".tar.gz"))
              (sha256
               (base32
                "0wgjcy1lbzp9j95fym2mqsl9h0dp9jw1kqgxpcl3h61z2mk8ffdi"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; there are no tests
    (inputs
     (list jack-1
           lv2
           alsa-lib
           new-session-manager
           liblo
           qtbase
           qtsvg))
    (native-inputs
     (list pkg-config qttools))
    (home-page "https://synthv1.sourceforge.io")
    (synopsis "Polyphonic subtractive synthesizer")
    (description
     "Synthv1 is an old-school subtractive polyphonic synthesizer with four
oscillators and stereo effects.")
    (license license:gpl2+)))

(define-public drumkv1
  (package
    (name "drumkv1")
    (version "1.1.0")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/drumkv1/drumkv1/" version
                              "/drumkv1-" version ".tar.gz"))
              (sha256
               (base32
                "0z1j4218x69nzri0nbcp3sadlwk0ixs5m9fdi4w7zpwy528bgxiz"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; there are no tests
    (inputs
     (list jack-1
           lv2
           libsndfile
           alsa-lib
           new-session-manager
           liblo
           qtbase
           qtsvg))
    (native-inputs
     (list pkg-config qttools))
    (home-page "https://drumkv1.sourceforge.io")
    (synopsis "Drum-kit sampler synthesizer with stereo effects")
    (description
     "Drumkv1 is an old-school drum-kit sampler synthesizer with stereo
effects.")
    (license license:gpl2+)))

(define-public samplv1
  (package
    (name "samplv1")
    (version "1.1.0")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/samplv1/samplv1/" version
                              "/samplv1-" version ".tar.gz"))
              (sha256
               (base32
                "1lfa9q8mkjz6m34w7fvqkd8p62f42wrrcniyv4k4d9f1a4582frd"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; there are no tests
    (inputs
     (list jack-1
           lv2
           libsndfile
           alsa-lib
           new-session-manager
           liblo
           qtbase
           qtsvg))
    (native-inputs
     (list pkg-config qttools))
    (home-page "https://samplv1.sourceforge.io")
    (synopsis "Polyphonic sampler synthesizer with stereo effects")
    (description
     "Samplv1 is an old-school polyphonic sampler synthesizer with stereo
effects.")
    (license license:gpl2+)))

(define-public padthv1
  (package
    (name "padthv1")
    (version "1.1.0")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/padthv1/padthv1/" version
                              "/padthv1-" version ".tar.gz"))
              (sha256
               (base32
                "17jx61bfg9k24mz266icxqbax3x0qvvywxlby16ky6fjp2dqy7x8"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; there are no tests
    (inputs
     (list jack-1
           lv2
           alsa-lib
           new-session-manager
           liblo
           fftwf
           qtbase
           qtsvg))
    (native-inputs
     (list pkg-config qttools))
    (home-page "https://padthv1.sourceforge.io")
    (synopsis "Polyphonic additive synthesizer")
    (description
     "Padthv1 is an old-school polyphonic additive synthesizer with stereo
effects.  Padthv1 is based on the PADsynth algorithm by Paul Nasca, as a
special variant of additive synthesis.")
    (license license:gpl2+)))

(define-public amsynth
  (package
    (name "amsynth")
    (version "1.13.4")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/amsynth/amsynth/releases/"
                           "download/release-" version
                           "/amsynth-" version ".tar.gz"))
       (sha256
        (base32 "1yryhwx05v1kzj44kxamgvwc65r65d7vlk4nbkaa6kjy7yy9lrwm"))))
    (build-system gnu-build-system)
    (arguments
     (list #:phases
           #~(modify-phases %standard-phases
               (add-after 'unpack 'patch-file-names
                 (lambda* (#:key inputs #:allow-other-keys)
                   (substitute* "src/GUI/editor_pane.c"
                     (("/usr/bin/unzip")
                      (search-input-file inputs "bin/unzip")))
                   (substitute* "src/GUI/MainMenu.cpp"
                     (("/usr/bin/which")
                      (search-input-file inputs "bin/which"))))))))
    (inputs
     (list alsa-lib
           gtk+-2
           jack-1
           libsndfile
           lv2
           ;; External commands invoked at run time.
           unzip
           which))
    (propagated-inputs
     ;; avoid runtime error:
     ;; GLib-GIO-ERROR **: 22:14:48.344: Settings schema
     ;;   'org.gnome.desktop.interface' is not installed
     (list gsettings-desktop-schemas))
    (native-inputs
     (append (list intltool
                   pkg-config)
             ;; For generating the documentation.
             (if (supported-package? pandoc)
                 (list pandoc)
                 '())))
    (home-page "https://amsynth.github.io")
    (synopsis "Analog modeling synthesizer")
    (description
     "amsynth is an easy-to-use software synthesizer with a classic
subtractive synthesizer topology.  Its features include: dual
oscillators (sine, saw, square, noise) with hard sync; 12 and 24 dB/oct
resonant filters (low-pass, high-pass, band-pass, notch); mono, poly, legato
keyboard modes; dual ADSR envelope generators for filter and amplitude; LFO
which can modulate the oscillators, filter, and amplitude; distortion and
reverb effects.")
    (license license:gpl2+)))

(define-public paulxstretch
  (package
    (name "paulxstretch")
    (version "1.6.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/essej/paulxstretch")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1pff51imfgmgqzc6mdgwd1v9fci0a8hj85fnkdsvkdzbnxdzvs9r"))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:tests? #f                       ;no test suite
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "deps/juce/extras/Projucer/Source/ProjectSaving/\
jucer_ProjectExport_CodeBlocks.h"
                (("/usr/include/freetype2")
                 (search-input-directory inputs "/include/freetype2")))
              (substitute*
                  "deps/juce/modules/juce_graphics/native/juce_linux_Fonts.cpp"
                (("/etc/fonts")
                 (search-input-directory inputs "/etc/fonts")))
              (substitute*
                  "deps/juce/modules/juce_gui_basics/native/x11/\
juce_linux_XWindowSystem.cpp"
                (("/usr/bin/dconf")
                 (search-input-file inputs "/bin/dconf"))
                (("/usr/bin/gsettings")
                 (search-input-file inputs "/bin/gsettings")))))
          (replace 'install
            (lambda _
              (let* ((lib (string-append #$output "/lib"))
                     (share (string-append #$output "/share"))
                     (clap (string-append lib "/clap"))
                     (vst3 (string-append lib "/vst3")))
                (with-directory-excursion
                    "PaulXStretch_artefacts/RelWithDebInfo"
                  (install-file "Standalone/paulxstretch"
                                (string-append #$output "/bin"))
                  (install-file "CLAP/PaulXStretch.clap" clap)
                  (mkdir-p vst3)
                  (copy-recursively "VST3" vst3)
                  (install-file (string-append
                                 #$source
                                 "/linux/paulxstretch.desktop")
                                (string-append share "/applications"))
                  (install-file (string-append
                                 #$source
                                 "/images/paulxstretch_icon_1024_rounded.png")
                                (string-append share "/pixmaps")))))))))
    (home-page "https://sonosaurus.com/paulxstretch/")
    (native-inputs (list pkg-config))
    (inputs (list alsa-lib
                  curl
                  dconf
                  fftwf
                  fontconfig
                  freetype
                  `(,glib "bin")
                  jack-1
                  libx11
                  libxcursor
                  libxext
                  libxinerama
                  libxrandr))
    (supported-systems '("x86_64-linux")) ;pffft.c uses SIMD code
    (synopsis "Audio timestretching application and plugin")
    (description
     "PaulXStretch is an application/plugin is based on the PaulStretch
algorithm (Paul’s Extreme Time Stretch, originally developed by Nasca Octavian
Paul), and specifically the PaulXStretch version from Xenakios.")
    (license license:gpl3+)))

(define-public setbfree
  (package
    (name "setbfree")
    (version "0.8.12")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/pantherb/setBfree")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1lzrrpm57pilvwxpr1qhnx6273md2k96ygxjlhi5gqjdl0nl3z95"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                       ; no "check" target
      #:make-flags
      #~(cons* (string-append "PREFIX=" #$output)
               (string-append "FONTFILE="
                              #$(this-package-input "font-bitstream-vera")
                              "/share/fonts/truetype/VeraBd.ttf")
               ;; Disable unsupported optimization flags on non-x86
               (let ((system #$(or (%current-target-system)
                                   (%current-system))))
                   (if (or (string-prefix? "x86_64" system)
                           (string-prefix? "i686" system))
                       '()
                       '("OPTIMIZATIONS=-ffast-math -fomit-frame-pointer -O3"))))
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'build 'set-CC-variable
            (lambda _ (setenv "CC" #$(cc-for-target))))
          (delete 'configure))))
    (inputs
     (list jack-1
           lv2
           zita-convolver
           glu
           ftgl
           font-bitstream-vera))
    (native-inputs
     (list help2man pkg-config))
    (home-page "https://setbfree.org")
    (synopsis "Tonewheel organ")
    (description
     "setBfree is a MIDI-controlled, software synthesizer designed to imitate
the sound and properties of the electromechanical organs and sound
modification devices that brought world-wide fame to the names and products of
Laurens Hammond and Don Leslie.")
    (license license:gpl2+)))

(define-public bristol
  (package
    (name "bristol")
    (version "0.60.11")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/bristol/bristol/"
                                  (version-major+minor version)
                                  "/bristol-" version ".tar.gz"))
              (sha256
               (base32
                "1fi2m4gmvxdi260821y09lxsimq82yv4k5bbgk3kyc3x1nyhn7vx"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'remove-sse-flags
           (lambda* (#:key system #:allow-other-keys)
             (when (not (or (string-prefix? "x86_64" system)
                            (string-prefix? "i686" system)))
               (substitute* "bristol/Makefile.in"
                 (("-msse -mfpmath=sse") "")))))
         ;; This is needed to build brighton
         (add-after 'unpack 'add-fcommon
           (lambda _
             (setenv "CFLAGS" "-fcommon")))
         ;; alsa-lib 1.1.x no longer provides iatomic.h.  That's okay because
         ;; bristol actually doesn't use it.
         (add-after 'unpack 'do-not-use-alsa-iatomic
           (lambda _
             (substitute* "libbristolaudio/audioEngineJack.c"
               (("#include <alsa/iatomic.h>") ""))))
         ;; We know that Bristol has been linked with JACK and we don't have
         ;; ldd, so we can just skip this check.
         (add-after 'unpack 'do-not-grep-for-jack
           (lambda _
             (substitute* "bin/startBristol.in"
               (("ldd `which bristol` | grep jack") "echo guix")))))))
    (inputs
     (list alsa-lib jack-2 liblo libx11))
    (native-inputs
     (list pkg-config))
    (home-page "https://bristol.sourceforge.net/")
    (synopsis "Synthesizer emulator")
    (description
     "Bristol is an emulation package for a number of different @code{classic}
synthesizers including additive and subtractive and a few organs.  The
application consists of the engine, which is called bristol, and its own GUI
library called brighton that represents all the emulations.  There are
currently more than twenty different emulations; each does sound different
although the author maintains that the quality and accuracy of each emulation
is subjective.")
    (license license:gpl3+)))

(define-public tuxguitar
  (package
    (name "tuxguitar")
    (version "1.5.5")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/tuxguitar/TuxGuitar/TuxGuitar-"
                    version "/tuxguitar-" version "-src.tar.gz"))
              (sha256
               (base32
                "1613aiq3x48l2nx1zxqh1cif6i5izkixfld8c9wri9nfv405b19f"))))
    (build-system ant-build-system)
    (arguments
     `(#:build-target "build"
       #:jdk ,icedtea-8
       #:tests? #f                      ; no tests
       #:phases
       (modify-phases %standard-phases
         (replace 'build
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((initial-classpath (getenv "CLASSPATH"))
                    (build-dir (lambda (dir)
                                 (setenv
                                  "CLASSPATH"
                                  (string-join (cons initial-classpath
                                                     (find-files (getcwd) "\\.jar$"))
                                               ":"))
                                 (with-directory-excursion dir
                                   (if (file-exists? "build.xml")
                                       ((assoc-ref %standard-phases 'build)
                                        #:build-target "build")
                                       (begin
                                         ;; Generate default build.xml.
                                         ((@@ (guix build ant-build-system)
                                              default-build.xml)
                                          (string-append (string-downcase dir) ".jar")
                                          (string-append (assoc-ref outputs "out")
                                                         "/share/java"))
                                         ((assoc-ref %standard-phases 'build))))))))
               (map build-dir '("TuxGuitar-lib"
                                "TuxGuitar-editor-utils"
                                "TuxGuitar-ui-toolkit"
                                "TuxGuitar-ui-toolkit-swt"
                                "TuxGuitar-viewer"
                                "TuxGuitar"
                                "TuxGuitar-gm-utils"
                                "TuxGuitar-alsa"
                                "TuxGuitar-midi"
                                "TuxGuitar-midi-ui"
                                "TuxGuitar-compat")))))
         (add-after 'build 'build-jni
           (lambda _
             (setenv "CC" "gcc")
             (setenv "CFLAGS" (string-append
                               "-fpic -I"
                               (getcwd)
                               "/build-scripts/native-modules/common-include"))
             (invoke "make" "-C" "./TuxGuitar-alsa/jni" "-f" "GNUmakefile")))
         (replace 'install
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out   (assoc-ref outputs "out"))
                    (bin   (string-append out "/bin"))
                    (share (string-append out "/share"))
                    (jni-lib (string-append out "/lib"))
                    (lib   (string-append share "/java"))
                    (swt   (assoc-ref inputs "java-swt"))
                    (mime  (string-append share "/mime/packages"))
                    (app   (string-append share "/applications"))
                    (man   (string-append share "/man/man1")))

               (mkdir-p bin)
               ;; Install all jars.
               (for-each (lambda (file)
                           (install-file file lib))
                         (find-files "." "\\.jar$"))

               ;; Install jni libraries
               (for-each (lambda (file)
                           (install-file file jni-lib))
                         (find-files "." "\\-jni.so$"))

               ;; Install all resources.
               (copy-recursively "./TuxGuitar/share" share)

               ;; Install desktop and mime files
               (install-file "./misc/tuxguitar.xml" mime)
               (install-file "./misc/tuxguitar.desktop" app)

               ;; Install manaual
               (install-file "./misc/tuxguitar.1" man)

               ;; Create wrapper.
               (call-with-output-file (string-append bin "/tuxguitar")
                 (lambda (port)
                   (let ((classpath (string-join (append  (find-files lib "\\.jar$")
                                                          (find-files swt "\\.jar$"))
                                                 ":")))
                     (format
                      port
                      (string-append "#!/bin/sh\n"
                                     (which "java")
                                     " -cp " classpath
                                     " -Dtuxguitar.home.path=" out
                                     " -Dtuxguitar.share.path=" out "/share"
                                     " -Dswt.library.path=" swt "/lib"
                                     " -Djava.library.path=" out "/lib"
                                     " org.herac.tuxguitar.app.TGMainSingleton"
                                     " \"$1\" \"$2\"")))))
               (chmod (string-append bin "/tuxguitar") #o555)))))))
    (inputs
     (list alsa-lib java-swt))
    (home-page "http://tuxguitar.com.ar/")
    (synopsis "Multitrack tablature editor and player")
    (description
     "TuxGuitar is a guitar tablature editor with player support through midi.
It can display scores and multitrack tabs.  TuxGuitar provides various
additional features, including autoscrolling while playing, note duration
management, bend/slide/vibrato/hammer-on/pull-off effects, support for
tuplets, time signature management, tempo management, gp3/gp4/gp5 import and
export.")
    (license license:lgpl2.1+)))

(define-public pd
  (package
    (name "pd")
    (version "0.55-0")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "http://msp.ucsd.edu/Software/pd-"
                              version ".src.tar.gz"))
              (sha256
               (base32
                "1gn3mc65v29b9s7qbqmi7y5ka4j7y997fyqrb3s1b5g7drxbwfph"))))
    (build-system gnu-build-system)
    (arguments
     (let ((wish (string-append "wish" (version-major+minor
                                        (package-version tk)))))
       (list
        #:tests? #f                     ; no "check" target
        #:configure-flags
        #~(list
           "--disable-oss"
           "--enable-jack"
           "--without-local-portaudio"
           (string-append "--with-wish="
                          (search-input-file %build-inputs
                                             (string-append "/bin/" #$wish))))
        #:phases
        #~(modify-phases %standard-phases
            (add-before 'configure 'fix-wish-path
              (lambda _
                (substitute* "tcl/pd-gui.tcl"
                  (("exec wish ")
                   (string-append "exec " (which #$wish) " ")))))))))
    (native-inputs
     (list autoconf automake libtool gettext-minimal pkg-config))
    (inputs
     (list tk alsa-lib jack-1 portaudio))
    (home-page "https://puredata.info")
    (synopsis "Visual programming language for artistic performances")
    (description
     "Pure Data (aka Pd) is a visual programming language.  Pd enables
musicians, visual artists, performers, researchers, and developers to create
software graphically, without writing lines of code.  Pd is used to process
and generate sound, video, 2D/3D graphics, and interface sensors, input
devices, and MIDI.  Pd can easily work over local and remote networks to
integrate wearable technology, motor systems, lighting rigs, and other
equipment.  Pd is suitable for learning basic multimedia processing and visual
programming methods as well as for realizing complex systems for large-scale
projects.")
    (license license:bsd-3)))

(define-public libpd
  (package
    (name "libpd")
    (version "0.11.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/libpd/libpd")
                    (commit version)
                    (recursive? #t)))   ; for the 'pure-data' submodule
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1bcg1d9iyf9n37hwwphmih0c8rd1xcqykil5z1cax6xfs76552nk"))))
    (build-system gnu-build-system)
    (arguments
     '(#:tests? #f                      ; no tests
       #:make-flags '("CC=gcc")
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ; no configure script
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (invoke "make" "install"
                       (string-append "prefix=" out)
                       ;; XXX: Fix the last 2 lines of 'install' target.
                       "LIBPD_IMPLIB=NO"
                       "LIBPD_DEF=NO")))))))
    (home-page "http://libpd.cc/")
    (synopsis "Pure Data as an embeddable audio synthesis library")
    (description
     "Libpd provides Pure Data as an embeddable audio synthesis library.  Its
main purpose is to liberate raw audio rendering from audio and MIDI drivers.")
    (license license:bsd-3)))

(define-public portmidi
  (package
    (name "portmidi")
    (version "217")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/portmedia/portmidi/"
                                  version "/portmidi-src-" version ".zip"))
              (sha256
               (base32
                "03rfsk7z6rdahq2ihy5k13qjzgx757f75yqka88v3gc0pn9ais88"))
              (patches (list (search-patch "portmidi-modular-build.patch")))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f                      ; tests cannot be linked
       #:build-type "Release"           ; needed to have PMALSA set
       #:configure-flags
       (list "-DPORTMIDI_ENABLE_JAVA=Off"
             "-DPORTMIDI_ENABLE_TEST=Off") ; tests fail linking
       #:phases
       (modify-phases %standard-phases
         ;; Some packages, e.g., MuseScore, expect "libporttime.so" instead of
         ;; "libportmidi.so".  Distributions get away with it by creating an
         ;; appropriate symlink.
         (add-after 'install 'add-porttime
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (lib (string-append out "/lib")))
               (with-directory-excursion lib
                 (symlink "libportmidi.so" "libporttime.so")))))
         (add-after 'install 'install-pkg-config
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (pkg-config-dir (string-append out "/lib/pkgconfig")))
               (mkdir-p pkg-config-dir)
               (with-output-to-file (string-append pkg-config-dir "/portmidi.pc")
                 (lambda _
                   (format #t
                           "prefix=~@*~a~@
                           libdir=${prefix}/lib~@
                           includedir=${prefix}/include~@

                           Name: portmidi~@
                           Description:~@
                           Version: ~a~@
                           Libs: -L${libdir} -lportmidi~@
                           Cflags: -I${includedir}~%"
                           out ,version)))))))))
    (inputs
     (list alsa-lib))
    (native-inputs
     (list unzip))
    (home-page "https://portmedia.sourceforge.net/portmidi/")
    (synopsis "Library for MIDI I/O")
    (description
     "PortMidi is a library supporting real-time input and output of MIDI data
using a system-independent interface.")
    (license license:expat)))

(define-public portmidi-2
  (package
    (name "portmidi")
    (version "2.0.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/PortMidi/portmidi")
             (commit "b808babecdc5d05205467dab5c1006c5ac0fdfd4")))
       (sha256
        (base32 "05a3dfpgbpcg08p8a3acjrrd1qy5hvvray2kz2asygy1vf3mx85s"))
       (file-name (git-file-name name version))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f       ;Tests are interactive and can be found in the
       #:configure-flags ;pm_tests/ directory of the build tree.
       (list "-DBUILD_PORTMIDI_TESTS=On")
       #:phases (modify-phases %standard-phases
                  (add-after 'unpack 'fix-version
                    (lambda _
                      (substitute* "CMakeLists.txt"
                        (("2.0.3")
                         (version))))))))
    (inputs (list alsa-lib))
    (native-inputs (list unzip))
    (home-page "https://github.com/PortMidi/")
    (synopsis "Library for MIDI I/O")
    (description
     "PortMidi is a library supporting real-time input and output of MIDI data
using a system-independent interface.")
    (license license:expat)))

(define-public python-pyportmidi
  (let ((commit "d9e5ee00b208b09618fa0d4a5bbce3c9c077b386")
        (revision "0"))
    (package
      (name "python-pyportmidi")
      (version (git-version "0.0.7" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/PortMidi/pm_python")
               (commit commit)))
         (sha256
          (base32 "1jvp9na8d1hw46w9ybhkimbavfb3ysw7hp30cbk6dj40k5y5vgvz"))
         (file-name (git-file-name name version))))
      (build-system python-build-system)
      (inputs (list portmidi-2 alsa-lib))
      (native-inputs (list python-cython))
      (home-page "https://github.com/PortMidi")
      (synopsis "Python bindings to PortMidi")
      (description
       "This package provides Python bindings to the PortMidi library.")
      (license license:expat))))

(define-public python-pysmf
  (let ((commit "8a98a557470301f5a471d07d37f334a5b8892602")
        (revision "1"))
    (package
      (name "python-pysmf")
      (version (git-version "0.1.1" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/mididings/pysmf")
               (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32 "1ic24k8jr7iwcrj7xaw5b9i22al05rxfpjw39bbjsg7v09kvygcv"))))
      (build-system pyproject-build-system)
      (arguments
       (list
        #:phases
        '(modify-phases %standard-phases
           (add-after 'unpack 'fix-build-system
             (lambda _
               (substitute* "setup.py"
                 (("from subprocess") "import sys; from subprocess")))))))
      (inputs (list libsmf glib))
      (native-inputs (list pkg-config python-cython python-pytest))
      (home-page "https://github.com/mididings/pysmf")
      (synopsis "Read and write Standard MIDI files")
      (description
       "pysmf is a Python extension module for reading and writing Standard
MIDI files, based on libsmf.")
      (license license:bsd-2))))

(define-public frescobaldi
  (package
    (name "frescobaldi")
    (version "3.3.0")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "https://github.com/frescobaldi/frescobaldi/releases/download/v"
             version "/frescobaldi-" version ".tar.gz"))
       (sha256
        (base32 "1n60gfnf6x0l1bac088g9adzx0lskbl9knd4y1ynr3y0zcs0kfcz"))))
    (build-system python-build-system)
    (arguments
     (list
      #:tests? #f ;no tests included
      #:phases #~(modify-phases %standard-phases
                   (add-before 'build 'generate-translations
                     (lambda _
                       (invoke "make" "-C" "i18n")))
                   (add-before 'build 'generate-metadata
                     (lambda _
                       (invoke "make" "-C" "linux")))
                   (add-after 'install 'wrap-executable
                     (lambda _
                       ;; Ensure that icons are found at runtime.
                       (wrap-program (string-append #$output
                                                    "/bin/frescobaldi")
                         `("QT_PLUGIN_PATH" prefix
                           ,(list (getenv "QT_PLUGIN_PATH")))))))))
    (inputs (list bash-minimal
                  lilypond
                  poppler
                  portmidi-2
                  python-ly
                  python-poppler-qt5
                  python-pyportmidi
                  python-pyqt
                  python-sip
                  qpageview
                  qtsvg-5))
    (home-page "https://www.frescobaldi.org/")
    (synopsis "LilyPond sheet music text editor")
    (description
     "Frescobaldi is a LilyPond sheet music text editor with syntax
highlighting and automatic completion.  Among other things, it can render
scores next to the source, can capture input from MIDI or read MusicXML and
ABC files, has a MIDI player for proof-listening, and includes a documentation
browser.")
    (license license:gpl2+)))

(define-public drumstick
  (package
    (name "drumstick")
    (version "2.3.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/drumstick/"
                                  version "/drumstick-" version ".tar.bz2"))
              (sha256
               (base32
                "1rs248pkgn6d29nkvw9ab6dvi1vsz220jdmz1ddzr29cpyc0adfh"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                      ; no test target
    (inputs
     (list qtbase-5 qtsvg-5 qttools-5 alsa-lib))
    (native-inputs
     (list pkg-config
           libxslt ; for xsltproc
           docbook-xsl
           doxygen
           graphviz)) ; for dot
    (home-page "https://drumstick.sourceforge.io/")
    (synopsis "C++ MIDI library")
    (description
     "Drumstick is a set of MIDI libraries using C++/Qt5 idioms and style.  It
includes a C++ wrapper around the ALSA library sequencer interface.  A
complementary library provides classes for processing SMF (Standard MIDI
files: .MID/.KAR), Cakewalk (.WRK), and Overture (.OVE) file formats.  A
multiplatform realtime MIDI I/O library is also provided with various output
backends, including ALSA, OSS, Network and FluidSynth.")
    (license license:gpl2+)))

(define-public vmpk
  (package
    (name "vmpk")
    (version "0.8.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/vmpk/vmpk/"
                                  version "/vmpk-" version ".tar.bz2"))
              (sha256
               (base32
                "0kh8pns9pla9c47y2nwckjpiihczg6rpg96aignsdsd7vkql69s9"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))  ; no test target
    (inputs
     (list drumstick qtbase-5 qtsvg-5 qtx11extras))
    (native-inputs
     (list libxslt ;for xsltproc
           docbook-xml-4.4 docbook-xsl qttools-5 pkg-config))
    (home-page "https://vmpk.sourceforge.io/")
    (synopsis "Virtual MIDI piano keyboard")
    (description
     "Virtual MIDI Piano Keyboard is a MIDI events generator and receiver.  It
doesn't produce any sound by itself, but can be used to drive a MIDI
synthesizer (either hardware or software, internal or external).  You can use
the computer's keyboard to play MIDI notes, and also the mouse.  You can use
the Virtual MIDI Piano Keyboard to display the played MIDI notes from another
instrument or MIDI file player.")
    (license license:gpl3+)))

(define-public zynaddsubfx
  (package
    (name "zynaddsubfx")
    (version "3.0.6")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/zynaddsubfx/zynaddsubfx/"
                    version "/zynaddsubfx-" version ".tar.bz2"))
              (sha256
               (base32
                "1bkirvcg0lz1i7ypnz3dyh218yhrqpnijxs8n3wlgwbcixvn1lfb"))))
    (build-system cmake-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; Move SSE compiler optimization flags from generic target to
         ;; athlon64 and core2 targets, because otherwise the build would fail
         ;; on non-Intel machines.
         (add-after 'unpack 'remove-sse-flags-from-generic-target
          (lambda _
            (substitute* "src/CMakeLists.txt"
              (("-msse -msse2 -mfpmath=sse") "")
              (("-march=(athlon64|core2)" flag)
               (string-append flag " -msse -msse2 -mfpmath=sse"))))))))
    (inputs
     (list liblo
           ntk
           mesa
           alsa-lib
           jack-1
           fftw
           fftwf
           minixml
           libxpm
           zlib))
    (native-inputs
     (list pkg-config
           ruby))
    (home-page "https://zynaddsubfx.sf.net/")
    (synopsis "Software synthesizer")
    (description
     "ZynAddSubFX is a feature heavy realtime software synthesizer.  It offers
three synthesizer engines, multitimbral and polyphonic synths, microtonal
capabilities, custom envelopes, effects, etc.")
    (license license:gpl2)))

(define-public yoshimi
  (package
    (name "yoshimi")
    (version "2.3.0.2")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://sourceforge/yoshimi/"
                           (version-major+minor version)
                           "/yoshimi-" version ".tar.bz2"))
       (sha256
        (base32 "1024ykyaq0s6zzyksrmgdz8ix0a4yranlsv5rbq72dbrkh3h8wqm"))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:tests? #f                       ; there are no tests
      #:configure-flags
      #~(list (string-append "-DLV2_INSTALL_DIR="
                             #$output "/lib/lv2")
              (string-append "-DCMAKE_INSTALL_DATAROOTDIR="
                             #$output "/share"))
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'configure 'enter-dir
            (lambda _ (chdir "src")))
          (add-after 'unpack 'fix-paths
            (lambda _
              (substitute* (list "src/Interface/InterChange.cpp"
                                 "src/Misc/Bank.cpp"
                                 "src/Misc/Config.cpp")
                (("/usr/share") (string-append #$output "/share")))))
          ;; Move SSE compiler optimization flags from generic target to
          ;; athlon64 and core2 targets, because otherwise the build would fail
          ;; on non-Intel machines.
          (add-after 'unpack 'remove-sse-flags-from-generic-target
            (lambda _
              (substitute* "src/CMakeLists.txt"
                (("-msse -msse2 -mfpmath=sse") "")
                (("-march=(athlon64|core2)" flag)
                 (string-append flag " -msse -msse2 -mfpmath=sse"))))))))
    (inputs
     (list alsa-lib
           boost
           cairo
           fftwf
           fltk
           fontconfig
           jack-2
           lv2
           mesa
           minixml
           ncurses
           readline
           zlib))
    (native-inputs
     (list pkg-config))
    (home-page "https://yoshimi.sourceforge.net/")
    (synopsis "Multi-paradigm software synthesizer")
    (description
     "Yoshimi is a fork of ZynAddSubFX, a feature-heavy real-time software
synthesizer.  It offers three synthesizer engines, multitimbral and polyphonic
synths, microtonal capabilities, custom envelopes, effects, etc.  Yoshimi
improves on support for JACK features, such as JACK MIDI.")
    (license license:gpl2)))

(define-public libgig
  (package
    (name "libgig")
    (version "4.2.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://download.linuxsampler.org/packages/"
                                  "libgig-" version ".tar.bz2"))
              (sha256
               (base32
                "1zs5yy124bymfyapsnljr6rv2lnn5inwchm0xnwiw44b2d39l8hn"))))
    (build-system gnu-build-system)
    (inputs
     (list `(,util-linux "lib") libsndfile))
    (native-inputs
     (list pkg-config))
    (home-page "https://linuxsampler.org/libgig/")
    (synopsis "C++ library for working with Gigasampler (.gig) files")
    (description
     "Libgig is a C++ library for loading, modifying existing and creating new
Gigasampler (.gig) files and DLS (Downloadable Sounds) Level 1/2 files, KORG
sample based instruments (.KSF and .KMP files), SoundFont v2 (.sf2) files and
AKAI sampler data.  The package includes a couple of command line tools based
on the library.")
    ;; The library and tools are released under the GPL, except the AKAI
    ;; classes which are released under the LGPL.
    (license (list license:gpl2+ license:lgpl2.1+))))

(define-public jack-keyboard
  (package
    (name "jack-keyboard")
    (version "2.7.2")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://sourceforge/jack-keyboard/jack-keyboard/"
                           version "/jack-keyboard-" version ".tar.gz"))
       (sha256
        (base32
         "1z34ga1z6ivgxbp0afsfghz7rn6s8vc9fxnb9ini8mx0dackr5ar"))))
    (build-system cmake-build-system)
    ;; Disable Lash support, as it is unmaintained and depends on Python 2.
    (arguments
     (list #:tests? #f                  ;no test suite
           #:configure-flags
           #~(list "-DLashEnable=OFF"
                   ;; XXX: FindGTK2.cmake from CMake expects the
                   ;; headers to be in FHS locations; give it some
                   ;; clues.
                   (string-append "-DGTK2_ADDITIONAL_SUFFIXES="
                                  "lib/glib-2.0;" ;for glibconfig.h
                                  "lib/gtk-2.0")))) ;for gdkconfig.h
    (inputs (list jack-2 gtk+-2))
    (home-page "https://jack-keyboard.sourceforge.net/")
    (synopsis "Virtual MIDI keyboard")
    (description "Jack-keyboard is a virtual MIDI keyboard, a program that
allows you to send JACK MIDI events (i.e. play) using your PC keyboard.")
    (license license:bsd-2)))

(define-public jack-capture
  (package
    (name "jack-capture")
    (version "0.9.73")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/kmatheussen/jack_capture")
                    (commit version)))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "0jcqky96q8xgya6wqv1p8pj9fkf2wh7ynl67ah7x5bn3basgfclf"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:tests? #f ; there are none
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))
    (native-inputs
     (list pkg-config which))
    (inputs
     (list gtk+-2
           jack-2
           libogg
           liblo
           lame
           libsndfile))
    (home-page "https://github.com/kmatheussen/jack_capture")
    (synopsis "Program for recording sound files with JACK")
    (description "This is a program for recording sound files with JACK.  It
can connect to any JACK port and record the output into a stereo WAV file.")
    (license license:gpl2+)))

(define-public jack-select
  (package
    (name "jack-select")
    (version "1.5.0")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "jack-select" version))
              (sha256
               (base32
                "1zijk9ly2fczxsnnrqr8s0ajmlyx1j1vd8gk0rm5dj5zyhhmia7f"))))
    (build-system gnu-build-system)
    (arguments
     `(#:modules ((guix build gnu-build-system)
                  ((guix build python-build-system) #:prefix python:)
                  (guix build utils))
       #:imported-modules (,@%default-gnu-imported-modules
                           (guix build python-build-system))
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:tests? #f                      ; there are none
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda* (#:key inputs #:allow-other-keys)
             ;; python-dbus cannot be found but it's really there.  See
             ;; https://github.com/SpotlightKid/jack-select/issues/2
             (substitute* "setup.py"
               (("'dbus-python',") ""))
             ;; Fix reference to dlopened libraries.
             (substitute* "jackselect/alsainfo.py"
               (("libasound.so.2")
                (search-input-file inputs "/lib/libasound.so.2")))))
         (replace 'build
           (assoc-ref python:%standard-phases 'build))
         (add-after 'install 'wrap
           (assoc-ref python:%standard-phases 'wrap)))))
    (native-inputs
     (list pkg-config))
    (inputs
     (list alsa-lib
           python-dbus
           python-pygobject
           python-pyudev
           python-pyxdg
           python-wrapper))
    (home-page "https://github.com/SpotlightKid/jack-select")
    (synopsis "Systray application to quickly change the JACK-DBus configuration")
    (description "This application displays an icon in the system tray (also
known as notification area) of your desktop, which shows the status of the
JACK audio server and when you click on it, a menu pops up, which lets you
quickly select from the JACK configuration presets you created with QjackCtl.
When you select a preset, its JACK engine and driver configuration settings
are loaded via DBus into JACK and then the server is restarted.  This allows
you to switch between different audio setups with just two mouse clicks.")
    (license license:expat)))

(define-public cursynth
  (package
    (name "cursynth")
    (version "1.5")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://gnu/cursynth/cursynth-"
                          version ".tar.gz"))
      (sha256
       (base32 "1dhphsya41rv8z6yqcv9l6fwbslsds4zh1y56zizi39nd996d40v"))
      (patches (search-patches "cursynth-wave-rand.patch"))))
    (build-system gnu-build-system)
    (native-inputs (list pkg-config))
    ;; TODO: See https://github.com/iyoko/cursynth/issues/4 which currently
    ;; prevents us from using pulseaudio
    (inputs (list ncurses alsa-lib))
    (home-page "https://www.gnu.org/software/cursynth/")
    (synopsis "Polyphonic and MIDI subtractive music synthesizer using curses")
    (description "GNU cursynth is a polyphonic synthesizer that runs
graphically in the terminal.  It is built on a full-featured subtractive
synthesis engine.  Notes and parameter changes may be entered via MIDI or the
computer's keyboard.")
    (license license:gpl3+)))

(define-public aj-snapshot
  (package
    (name "aj-snapshot")
    (version "0.9.9")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/aj-snapshot/"
                                  "aj-snapshot-" version ".tar.bz2"))
              (sha256
               (base32
                "0z8wd5yvxdmw1h1rj6km9h01xd4xmp4d86gczlix7hsc7zrf0wil"))))
    (build-system gnu-build-system)
    (inputs
     (list minixml jack-1 alsa-lib))
    (native-inputs
     (list pkg-config))
    (home-page "https://aj-snapshot.sourceforge.net/")
    (synopsis "Snapshot connections between ALSA and JACK clients")
    (description "Aj-snapshot is a small program that can be used to make
snapshots of the connections made between JACK and/or ALSA clients.  Because
JACK can provide both audio and MIDI support to programs, aj-snapshot can
store both types of connections for JACK.  ALSA, on the other hand, only
provides routing facilities for MIDI clients.  Aj-snapshot is meant to be used
from the command line.")
    (license license:gpl3+)))

(define-public qtractor
  (package
    (name "qtractor")
    (version "1.1.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://downloads.sourceforge.net/qtractor/"
                                  "qtractor-" version ".tar.gz"))
              (sha256
               (base32
                "09kvv4anjpv3pk0ajn8685d24ya6h771sm6yh4kgviykzvl3vjyd"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; no "check" target
    (inputs
     (list alsa-lib
           jack-1
           ladspa
           liblo
           libmad
           libsamplerate
           libsndfile
           libvorbis
           lilv
           lv2
           qtbase
           qtsvg
           rubberband
           suil
           zlib))
    (native-inputs
     (list pkg-config qttools))
    (home-page "https://qtractor.org/")
    (synopsis "Audio/MIDI multi-track sequencer")
    (description
     "Qtractor is an Audio/MIDI multi-track sequencer application.  It uses
JACK for audio and ALSA sequencer for MIDI as multimedia infrastructures and
follows a traditional multi-track tape recorder control paradigm.")
    (license license:gpl2+)))

(define-public ams-lv2
  (package
    (name "ams-lv2")
    (version "1.2.2")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/blablack/ams-lv2")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1lz2mvk4gqsyf92yxd3aaldx0d0qi28h4rnnvsaz4ls0ccqm80nk"))))
    (build-system waf-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'remove-sse-flags
           (lambda* (#:key system #:allow-other-keys)
             (unless (or (string-prefix? "x86_64" system)
                         (string-prefix? "i686" system))
               (substitute* "wscript"
                 (("'-msse', '-mfpmath=sse', ") ""))))))
       #:tests? #f))                    ;no tests
    (inputs
     (list cairo
           fftw
           gtk+-2
           gtkmm-2
           lv2
           lvtk))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/blablack/ams-lv2")
    (synopsis "Port of Alsa Modular Synth internal modules into LV2")
    (description "This set of LV2 plugins is a port of the internal modules
found in Alsa Modular Synth.  These plugins are used to create modular
synthesizers and contain: VCO, VCF, VCA, LFO, slew limiter, envelopes, sample
and hold, etc.")
    (license license:gpl2)))

(define-public gxtuner
  (package
    (name "gxtuner")
    (version "2.4")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/gxtuner")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1fxd2akan2njlr7fpkh84830783qhh1gg7yakswqk5dd466dcn96"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "INCLUDE_L_DIR="
                            (assoc-ref %build-inputs "zita-resampler")
                            "/include/"))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-before 'build 'target-specific-glib-API-version
           (lambda _
             ;; See https://github.com/brummer10/gxtuner/pull/21
             (setenv "CFLAGS"
                     "-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_54\
 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_54"))))))
    (inputs
     (list gtk+ jack-1 fftwf cairo zita-resampler))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/brummer10/gxtuner")
    (synopsis "Guitar tuner")
    (description "GXtuner is a simple guitar tuner for JACK with an
analogue-like user interface.")
    (license license:gpl2+)))

(define-public mod-host
  ;; The last release was in 2014 but since then hundreds of commits have
  ;; been made.
  (let ((commit "cdd30ddbd2cc916be8a0364275071c3d8335b3a7")
        (revision "4"))
    (package
      (name "mod-host")
      (version (git-version "0.10.6" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/moddevices/mod-host")
                      (commit commit)))
                (sha256
                 (base32
                  "1xnflvcyj071gn9nhv5dynd0v85nq99sz1wn3adlj43l5m4fbx3a"))
                (file-name (git-file-name name version))))
      (build-system gnu-build-system)
      (arguments
       (list
        #:tests? #f                     ; no tests included
        #:make-flags
        #~(list (string-append "PREFIX=" #$output) "CC=gcc")
        #:phases
        #~(modify-phases %standard-phases
            (delete 'configure)
            (add-after 'unpack 'fix-jack-installation-directory
              (lambda _
                ;; Do not attempt to install files to output of "jack" package.
                (substitute* "Makefile"
                  (("\\$\\(shell pkg-config --variable=libdir jack\\)")
                   "lib")))))))
      (inputs
       (list lilv
             fftw
             fftwf
             lv2
             jack-2
             readline))
      (native-inputs
       (list pkg-config
             python-wrapper))
      (home-page "https://github.com/moddevices/mod-host")
      (synopsis "LV2 host for Jack controllable via socket or command line")
      (description "mod-host is an LV2 plugin host for JACK, controllable via
socket or command line.")
      (license license:gpl3+))))

(define-public synthpod
  (package
    (name "synthpod")
    (version "0.1.6507")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://git.open-music-kontrollers.ch/lv2/synthpod")
                    ;; Version is not tagged but mentioned in VERSION file.
                    (commit "6e84a075ea8fea95094dcbc2b30f968717a81960")))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1chazkdxjgjzfxqmlk4ywhilkj9l3bybd9xghjg9r67df2diqhbs"))))
    (build-system meson-build-system)
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-references
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* '("bin/synthpod_ui"
                             "bin/synthpod_d2tk")
                (("lv2info") (search-input-file inputs "/bin/lv2info"))
                ((" synthpod_sandbox_x11")
                 (string-append " " #$output "/bin/synthpod_sandbox_x11")))
              (substitute* "bin/synthpod_bin.c"
                (("%s/.lv2") (string-append #$output "/lib/lv2"))
                ((", home_dir") ""))))
          (add-before 'check 'set-home-directory
            (lambda _
              ;; Tests fail with: Fontconfig error: No writable cache
              ;; directories
              (setenv "HOME" "/tmp"))))))
    (inputs
     (list alsa-lib
           cairo
           eudev
           freetype
           font-fira-code
           font-fira-sans
           fontconfig
           glew
           glu
           jack-2
           libvterm
           libevdev
           libinput
           libvterm
           lilv ;for lv2info
           lv2
           pixman
           sratom
           xcb-util
           xcb-util-wm
           xcb-util-xrm
           zita-alsa-pcmi))
    (native-inputs (list pkg-config))
    (home-page "https://open-music-kontrollers.ch/lv2/synthpod/")
    (synopsis "Nonlinear LV2 plugin container")
    (description
     "Synthpod is an LV2 host.  It can be run as a standalone app and be used
as a tool for live performances or general audio and event filtering.")
    (license (list license:artistic2.0 license:gpl3+))))

(define-public curseradio
  (let ((commit "1bd4bd0faeec675e0647bac9a100b526cba19f8d")
        (revision "1"))
    (package
      (name "curseradio")
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/chronitis/curseradio")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "11bf0jnj8h2fxhpdp498189r4s6b47vy4wripv0z4nx7lxajl88i"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'link-to-mpv
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "curseradio/curseradio.py"
               (("/usr/bin/mpv")
                (search-input-file inputs "/bin/mpv"))))))))
    (propagated-inputs
     (list python-lxml python-requests python-pyxdg))
    (inputs
     (list mpv))
    (home-page "https://github.com/chronitis/curseradio")
    (synopsis "Command-line Internet radio player")
    (description "Curseradio is a Curses-based radio player that uses a
tune-in sender list from @url{http://opml.radiotime.com}.")
    (license license:expat))))

(define-public pianobar
  (package
    (name "pianobar")
    (version "2022.04.01")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/PromyLOPh/pianobar")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "14s97fx83dg8szbib2y608hjzfdhz20hch2ify3gqhji58v69wil"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no tests
       #:make-flags (list "CC=gcc" (string-append "PREFIX=" %output))
       #:phases (modify-phases %standard-phases
                  (delete 'configure))))
    (inputs
     (list ao curl libgcrypt json-c ffmpeg))
    (native-inputs
     (list pkg-config))
    (home-page "https://6xq.net/pianobar/")
    (synopsis "Console-based pandora.com player")
    (description "pianobar is a console-based music player for the
personalized online radio pandora.com.  It has configurable keys for playing
and managing stations, can be controlled remotely via fifo, and can run
event-based scripts for scrobbling, notifications, etc.")
    (license license:expat)))

(define-public picard
  (package
    (name "picard")
    (version "2.12.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://data.musicbrainz.org/pub/musicbrainz/"
                    "picard/picard-" version ".tar.gz"))
              (sha256
               (base32
                "01244105zy1f1g22ivhx9pjd1acqbkycfr9r44h70jyml5abc7z5"))))
    (build-system python-build-system)
    (arguments
     (list
      #:use-setuptools? #f
      #:configure-flags
      #~(list "--root=/"
              ;; Don't phone home or show ‘Check for Update…’ in the Help menu.
              "--disable-autoupdate")
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-source
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "picard/const/__init__.py"
                (("pyfpcalc")
                 (string-append
                  "pyfpcalc', '"
                  (assoc-ref inputs "chromaprint") "/bin/fpcalc")))))
          ;; pipe tests require writable $HOME.
          (add-before 'check 'set-HOME
            (lambda _
              (setenv "HOME" "/tmp"))))))
    (native-inputs
     (list gettext-minimal python-dateutil))
    (inputs
     (list chromaprint
           python-charset-normalizer-3
           python-discid
           python-pyqt
           python-mutagen
           python-fasteners
           python-pyyaml
           python-markdown
           python-pyjwt))
    (home-page "https://picard.musicbrainz.org/")
    (synopsis "Graphical music tagging application")
    (description
     "MusicBrainz Picard is a music tagging application, supporting multiple
formats, looking up tracks through metadata and audio fingerprints.")
    (license license:gpl2+)))

(define-public python-mutagen
  (package
    (name "python-mutagen")
    (version "1.45.1")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "mutagen" version))
              (sha256
               (base32
                "1qdk6i8gyhbi1c4j5jmbfpac3q8sff2ysri1pnp7nb9wzcp615v3"))))
    (build-system python-build-system)
    (arguments
     (list
       #:phases
       #~(modify-phases %standard-phases
           (add-before 'check 'remove-hypothesis-deadlines
             ;; These tests can timeout on slower architectures.
             (lambda _
               (substitute* "tests/test___init__.py"
                 (("import given") "import given, settings")
                 (("( +)@given" all spaces)
                  (string-append spaces "@settings(deadline=None)\n" all))))))))
    (native-inputs
     (list python-pytest python-hypothesis python-flake8))
    (home-page "https://mutagen.readthedocs.io/")
    (synopsis "Read and write audio tags")
    (description "Mutagen is a Python module to handle audio metadata.  It
supports ASF, FLAC, M4A, Monkey’s Audio, MP3, Musepack, Ogg FLAC, Ogg Speex, Ogg
Theora, Ogg Vorbis, True Audio, WavPack and OptimFROG audio files.  All versions
of ID3v2 are supported, and all standard ID3v2.4 frames are parsed.  It can read
Xing headers to accurately calculate the bitrate and length of MP3s.  ID3 and
APEv2 tags can be edited regardless of audio format.  It can also manipulate Ogg
streams on an individual packet/page level.")
    (license license:gpl2))) ; "later version" never mentioned

(define-public python-mediafile
  (package
    (name "python-mediafile")
    (version "0.8.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "mediafile" version))
       (sha256
        (base32
         "0ipb001j19s9wvssmrj8wz0nrkbl0k3zr3dgzyp1bd9cjc6vklnp"))))
    (build-system python-build-system)
    (propagated-inputs
     (list python-mutagen python-six))
    (home-page "https://github.com/beetbox/mediafile")
    (synopsis "Read and write audio file tags")
    (description
     "MediaFile is a simple interface to the metadata tags for many audio file
formats.  It wraps Mutagen, a high-quality library for low-level tag
manipulation, with a high-level, format-independent interface for a common set
of tags.")
    (license license:expat)))

(define-public python-musicbrainzngs
  (package
    (name "python-musicbrainzngs")
    (version "0.7.1")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "musicbrainzngs" version))
              (sha256
               (base32
                "09z6k07pxncfgfc8clfmmxl2xqbd7h8x8bjzwr95hc0bzl00275b"))))
    (build-system python-build-system)
    (home-page "https://python-musicbrainzngs.readthedocs.org/")
    (synopsis "Python bindings for MusicBrainz NGS webservice")
    (description "Musicbrainzngs implements Python bindings of the MusicBrainz
web service.  This library can be used to retrieve music metadata from the
MusicBrainz database.")
    ;; 'musicbrainzngs/compat.py' is ISC licensed.
    (license (list license:bsd-2 license:isc))))

(define-public python-isrcsubmit
  (package
    (name "python-isrcsubmit")
    (version "2.0.1")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "isrcsubmit" version))
       (sha256
        (base32
         "0jh4cni8qhri6dh83cmp0i0m0384vv0vznlygv49wj9xzh1d99qv"))))
    (build-system python-build-system)
    (propagated-inputs
     (list python-discid python-musicbrainzngs))
    (home-page "https://github.com/JonnyJD/musicbrainz-isrcsubmit")
    (synopsis "Submit ISRCs from CDs to MusicBrainz")
    (description "@code{isrcsubmit} is a tool to extract @dfn{International
Standard Recording Code} (ISRCs) from audio CDs and submit them to
@url{https://musicbrainz.org/, MusicBrainz}.")
    (license license:gpl3+)))

(define-public python-pylast
  (package
    (name "python-pylast")
    (version "4.2.1")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "pylast" version))
              (sha256
               (base32
                "0pzzhr4mlwpvfhy9gzq86ppz29fmf5z0w3xkl5if1fm59r1afms7"))))
    (build-system python-build-system)
    ;; Tests require network access.  See
    ;; https://github.com/pylast/pylast/issues/105
    (arguments '(#:tests? #f))
    (native-inputs
     (list python-coverage python-pytest python-flaky python-pyyaml
           python-setuptools-scm))
    (home-page "https://github.com/pylast/pylast")
    (synopsis "Python interface to Last.fm and Libre.fm")
    (description "A Python interface to Last.fm and other API-compatible
websites such as Libre.fm.")
    (license license:asl2.0)))

(define-public instantmusic
  (let ((commit "300891d09c703525215fa5a116b9294af1c923c8")
        (revision "1"))
    (package
      (name "instantmusic")
      (version (git-version "1.0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/yask123/Instant-Music-Downloader")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0j7qivaa04bpdz3anmgci5833dgiyfqqwq9fdrpl9m68b34gl773"))))
    (build-system python-build-system)
    (propagated-inputs
     (list python-requests eyed3 python-beautifulsoup4 youtube-dl))
    (arguments
     '(#:modules ((guix build python-build-system)
                  (guix build utils)
                  (srfi srfi-26))
       #:phases (modify-phases %standard-phases
                  (add-before 'build 'change-directory
                    (lambda _
                      (chdir "instantmusic-0.1") #t))
                  (add-before 'install 'fix-file-permissions
                    (lambda _
                      ;; Fix some read-only files that would cause a build failure
                      (for-each (cut chmod <> #o644)
                                (find-files "instantmusic.egg-info"
                                            "PKG-INFO|.*\\.txt"))
                      #t)))))
    (home-page "https://github.com/yask123/Instant-Music-Downloader")
    (synopsis "Command-line program to download a song from YouTube")
    (description "InstantMusic downloads a song from YouTube in MP3 format.
    Songs can be searched by artist, name or even by a part of the song text.")
    (license license:expat))))

(define-public beets
  (package
    (name "beets")
    (version "1.6.0")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "beets" version))
              (sha256
               (base32
                "0paj2nxvdx4zz9xawjpbsh0dy1kp9kfhxg8akh1rpz2awhsbfvxa"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'set-HOME
           (lambda _
             (setenv "HOME" (string-append (getcwd) "/tmp"))
             #t))
         (replace 'check
           (lambda* (#:key tests? #:allow-other-keys)
             (when tests?
               (invoke "pytest" "-v" "test"))))
         ;; Wrap the executable, so it can find python-gi (aka
         ;; pygobject) and gstreamer plugins.
         (add-after 'wrap 'wrap-typelib
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((prog (string-append (assoc-ref outputs "out")
                                        "/bin/beet"))
                   (plugins (getenv "GST_PLUGIN_SYSTEM_PATH"))
                   (types (getenv "GI_TYPELIB_PATH")))
               (wrap-program prog
                 `("GST_PLUGIN_SYSTEM_PATH" ":" prefix (,plugins))
                 `("GI_TYPELIB_PATH" ":" prefix (,types)))
               #t))))))
    (native-inputs
     (list gobject-introspection
           python-flask
           python-mock
           python-py7zr
           python-pytest
           python-responses))
    (inputs
     (list bash-minimal
           gst-plugins-base
           gst-plugins-good
           gstreamer
           python-confuse
           python-jellyfish
           python-mediafile
           python-munkres
           python-musicbrainzngs
           python-pyyaml
           python-unidecode
           ;; Optional dependencies for plugins. Some of these are also required by tests.
           python-beautifulsoup4 ; For lyrics.
           python-discogs-client ; For discogs.
           python-mpd2 ; For mpdstats.
           python-mutagen ; For scrub.
           python-langdetect ; For lyrics.
           python-pillow ; For fetchart, embedart, thumbnails.
           python-pyacoustid ; For chroma.
           python-pygobject ; For bpd, replaygain.
           python-pylast ; For lastgenre, lastimport.
           python-pyxdg ; For thumbnails.
           python-rarfile ; For import.
           python-reflink ; For reflink.
           python-requests
           python-requests-oauthlib)) ; For beatport.
    (home-page "https://beets.io")
    (synopsis "Music organizer")
    (description "The purpose of beets is to get your music collection
right once and for all.  It catalogs your collection, automatically
improving its metadata as it goes using the MusicBrainz database.
Then it provides a variety of tools for manipulating and accessing
your music.")
    (license license:expat)))

(define-public beets-next
  (deprecated-package "beets-next" beets))

(define-public beets-bandcamp
  (package
    (name "beets-bandcamp")
    (version "0.1.4")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "beets-bandcamp" version))
              (sha256
               (base32
                "0dwbdkrb9c0ppzm5s78h47ndpr88cw1k0z8fgfhkl706wazx2ddg"))))
    (build-system python-build-system)
    (arguments '(#:tests? #f))          ; there are no tests
    (propagated-inputs
     (list beets
           python-beautifulsoup4
           python-confuse
           python-isodate
           python-jellyfish
           python-mediafile
           python-munkres
           python-musicbrainzngs
           python-requests
           python-six
           python-unidecode))
    (home-page "https://github.com/unrblt/beets-bandcamp")
    (synopsis "Bandcamp plugin for beets")
    (description
     "This plugin for beets automatically obtains tag data from @uref{Bandcamp,
https://bandcamp.com/}.  It's also capable of getting song lyrics and album art
using the beets FetchArt plugin.")
    (license license:gpl2)))

(define-public milkytracker
  (package
    (name "milkytracker")
    (version "1.04.00")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/milkytracker/MilkyTracker")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0zxaq69yb30wyw4dmx3hypzgyxsypp6i9qrv599jlbbbzhwjysqc"))
              (modules '((guix build utils)))
              ;; Remove non-FSDG compliant sample songs.
              (snippet
               '(begin
                  (delete-file-recursively "resources/music")
                  (substitute* "CMakeLists.txt"
                    (("add_subdirectory\\(resources/music\\)") ""))))))
    (build-system cmake-build-system)
    (arguments
     '(#:tests? #f ; no check target
       ;; This flag ensures that MilkyTracker links with the JACK library.
       #:configure-flags '("-DCMAKE_CXX_FLAGS=-ljack")))
    (inputs
     (list alsa-lib
           lhasa
           jack-2
           rtmidi-4.0
           sdl2
           zlib
           zziplib))
    (native-inputs
     (list pkg-config))
    (synopsis "Music tracker for working with .MOD/.XM module files")
    (description "MilkyTracker is a music application for creating .MOD and
.XM module files.  It attempts to recreate the module replay and user
experience of the popular DOS program Fasttracker II, with special playback
modes available for improved Amiga ProTracker 2/3 compatibility.")
    (home-page "https://milkytracker.titandemo.org/")
    ;; 'src/milkyplay' is under Modified BSD, the rest is under GPL3 or later.
    (license (list license:bsd-3 license:gpl3+))))

(define-public schismtracker
  (package
    (name "schismtracker")
    (version "20221201")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/schismtracker/schismtracker")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "11yy5zrdfvnwzwdwmc3s3lx1ymwiyp1si5mmv4h9qxipd9j96ijp"))
              (modules '((guix build utils)))
              (snippet
               ;; Remove use of __DATE__ and __TIME__ for reproducibility.
               #~(substitute* "schism/version.c"
                   (("Schism Tracker built %s %s.*$")
                    (string-append
                     "Schism Tracker version " #$version "\") ;"))))))
    (build-system gnu-build-system)
    (arguments
     (list #:configure-flags #~(list "--with-flac=yes" "--with-x11=no")
           #:phases #~(modify-phases %standard-phases
                        (add-before 'configure 'link-libm
                          (lambda _
                            (setenv "LIBS" "-lm"))))))
    (native-inputs
     (list autoconf automake python))
    (inputs
     (list alsa-lib ; for asound dependency
           flac
           sdl2))
    (home-page "https://schismtracker.org")
    (synopsis "Oldschool sample-based music composition tool")
    (description
     "Schism Tracker is a reimplementation of Impulse Tracker, a program used to
create high quality music without the requirements of specialized, expensive
equipment, and with a unique \"finger feel\" that is difficult to replicate in
part.  The player is based on a highly modified version of the ModPlug engine,
with a number of bugfixes and changes to improve IT playback.")
    (license license:gpl2+)))

(define-public sooperlooper
  (package
    (name "sooperlooper")
    (version "1.7.8")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://sonosaurus.com/sooperlooper"
                           "/sooperlooper-" version ".tar.gz"))
       (sha256
        (base32 "0dd2kryizwrzndbwafpbddf9w2ghw9gfmb8nyss5hll70b1dx59f"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'add-sigc++-includes
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((sig (search-input-directory inputs "include/sigc++-2.0"))
                   (xml (search-input-directory inputs "include/libxml2"))
                   (cwd (getcwd)))
               (setenv "CPATH"
                       (string-append sig ":"
                                      sig "../../lib/sigc++-2.0/include:"
                                      xml ":"
                                      cwd "/libs/pbd:"
                                      cwd "/libs/midi++:"
                                      (or (getenv "CPATH") ""))))
             (substitute* '("src/control_osc.hpp"
                            "src/gui/app_frame.hpp"
                            "src/gui/config_panel.hpp"
                            "src/gui/keys_panel.hpp"
                            "src/gui/latency_panel.hpp"
                            "src/gui/main_panel.hpp"
                            "src/gui/midi_bind_panel.hpp"
                            "src/gui/prefs_dialog.hpp")
               (("sigc\\+\\+/object.h")
                "sigc++/sigc++.h"))
             (substitute* '("src/engine.cpp"
                            "src/gui/latency_panel.cpp"
                            "src/gui/looper_panel.cpp"
                            "src/gui/main_panel.cpp")
               (("(\\(| )bind " _ pre)
                (string-append pre "sigc::bind ")))
             #t))
         (add-after 'unpack 'fix-xpm-warnings
           (lambda _
             (substitute* (find-files "." "\\.xpm$")
               (("static char") "static const char"))
             #t)))))
    (inputs
     (list jack-1
           alsa-lib
           wxwidgets-gtk2-3.0
           libsndfile
           libsamplerate
           liblo
           rubberband
           libxml2
           libsigc++-2
           ncurses))
    (native-inputs
     (list pkg-config))
    (home-page "https://sonosaurus.com/sooperlooper/")
    (synopsis "Live looping sampler")
    (description
     "SooperLooper is a live looping sampler capable of immediate loop
recording, overdubbing, multiplying, reversing and more. It allows for
multiple simultaneous multi-channel loops limited only by your computer's
available memory.")
    (license license:gpl2+)))

(define-public moc
  (package
    (name "moc")
    (version "2.5.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://ftp.daper.net/pub/soft/"
                                  name "/stable/"
                                  name "-" version ".tar.bz2"))
              (sha256
               (base32
                "026v977kwb0wbmlmf6mnik328plxg8wykfx9ryvqhirac0aq39pk"))))
    (build-system gnu-build-system)
    (inputs
     (list alsa-lib
           curl
           faad2
           ffmpeg-3.4
           file
           jack-1
           libid3tag
           libltdl
           libmodplug
           libmpcdec
           libmad
           libogg
           libvorbis
           ncurses
           openssl
           cyrus-sasl
           speex
           taglib
           wavpack
           zlib))
    (native-inputs
     (list pkg-config))
    (synopsis "Console audio player designed to be powerful and easy to use")
    (description
     "Music on Console is a console audio player that supports many file
formats, including most audio formats recognized by FFMpeg.")
    (home-page "http://moc.daper.net")
    (license license:gpl2+)))

(define-public midicsv
  (package
    (name "midicsv")
    (version "1.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://www.fourmilab.ch/webtools/midicsv/"
                                  name "-" version ".tar.gz"))
              (sha256
               (base32
                "1vvhk2nf9ilfw0wchmxy8l13hbw9cnpz079nsx5srsy4nnd78nkw"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases (delete 'configure))
       #:make-flags (list "CC=gcc" (string-append "INSTALL_DEST=" %output))))
    (synopsis "Convert MIDI files to and from CSV")
    (description
     "Midicsv reads a standard MIDI file and decodes it into a comma-separated
value file (CSV), which preserves all the information in the MIDI file.  The
ASCII CSV file may be loaded into a spreadsheet or database application, or
processed by a program to transform the MIDI data (for example, to key
transpose a composition or extract a track from a multi-track sequence).  A
CSV file in the format created by midicsv may be converted back into a
standard MIDI file with the csvmidi program.")
    (home-page "https://www.fourmilab.ch/webtools/midicsv/")
    (license license:public-domain)))

(define-public mididings
  (let ((commit "d98265be8afe7da20a5c7cfd0515f0d5fae5c53a")
        (revision "1"))
    (package
      (name "mididings")
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/mididings/mididings")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1a8i4yac5jjkq0vh73nwkv0j7vnvfwbzzagam4xdl1gpnc26n5xi"))))
      (build-system pyproject-build-system)
      (arguments
       (list
        #:phases
        '(modify-phases %standard-phases
           (add-after 'unpack 'build-manpages
             (lambda _
               (with-directory-excursion "doc/man"
                 (for-each (lambda (doc)
                             (system (format #false
                                             "scdoc < ~a.scd > ~a.1" doc doc)))
                           '(livedings mididings send_midi))))))))
      (inputs
       (list alsa-lib
             boost
             jack-2
             `(,python "tk")
             python-dbus
             python-decorator
             python-pyinotify
             python-pyliblo
             python-pysmf))
      (native-inputs (list python-pytest pkg-config scdoc))
      (home-page "https://github.com/mididings/mididings")
      (synopsis "MIDI router and processor")
      (description
       "mididings is a MIDI router/processor based on Python, supporting ALSA
and JACK MIDI.  Features include:

@itemize
@item MIDI routing and filtering; filter events depending on their event type,
  channel, note number, velocity, etc., and freely route them between an
  arbitrary number of input and output ports.
@item Modifying and converting MIDI events; transpose notes, apply velocity
  curves, change controller values and ranges, or convert events to any other
  MIDI event type. mididings also includes more complex functions like a
  diatonic harmonizer, floating split points, latched notes, and more.
@item Seamless switching between patches; set up different \"scenes\", each
  with its own MIDI routing and processing, and switch between them at any time,
  even while playing.  Switching scenes does not affect notes already held, and
  does not result in dropouts or stuck notes!
@item MIDI event monitoring, running external commands; print MIDI event data
  to the console to help debugging your patches and configuring your MIDI
  controllers.  In addition to its MIDI output, mididings can also execute shell
  commands and send OSC or DBUS messages.
@end itemize")
      (license license:gpl2+))))

(define-public gx-guvnor-lv2
  (package
    (name "gx-guvnor-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxGuvnor.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1wa5070j40p7f0b3kr259pzm99xb6cf2badr2capayjvgayd6gnm"))))
    (build-system gnu-build-system)
    (arguments
     `(;; The check target is used only to output a warning.
       #:tests? #f
       #:make-flags
       (list (string-append "DESTDIR=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda _
             (substitute* "Makefile"
               (("INSTALL_DIR = .*") "INSTALL_DIR=/lib/lv2\n")
               (("install : all") "install :"))
             #t)))))
    (inputs
     (list lv2))
    (home-page "https://github.com/brummer10/GxGuvnor.lv2")
    (synopsis "Overdrive/distortion pedal simulation")
    (description "This package provides the LV2 plugin \"GxGuvnor\", a
simulation of an overdrive or distortion pedal for guitars.")
    ;; The LICENSE file says GPLv3 but the license headers in the files say
    ;; GPLv2 or later.  The whole project is released under GPLv3 or later
    ;; according to https://github.com/brummer10/GxGuvnor.lv2/issues/1
    (license license:gpl3+)))

(define-public gx-vbass-preamp-lv2
  (let ((commit "f6a01c22fea71b155a797853c23653137ac89c1c")
        (revision "3"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-vbass-preamp-lv2")
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxVBassPreAmp.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "1ssa2xkppn7cn8lfvglb6brm5qsd7kysmabfj34qrqbywf5hdisw"))
                (file-name (git-file-name name version))))
      (arguments
       (list
        ;; The check target is used only to output a warning.
        #:tests? #false
        #:make-flags
        #~(list (string-append "DESTDIR=" #$output)
                (string-append "CC=" #$(cc-for-target)))
        #:phases
        '(modify-phases %standard-phases
           (replace 'configure
             (lambda _
               (substitute* "Makefile"
                 (("INSTALL_DIR = .*") "INSTALL_DIR=/lib/lv2\n")
                 (("install : all") "install :")))))))
      (inputs
       (list lv2 gtk+))
      (native-inputs
       (list pkg-config))
      (home-page "https://github.com/brummer10/GxVBassPreAmp.lv2")
      (synopsis "Simulation of the Vox Venue Bass 100 Pre Amp Section")
      (description "This package provides the LV2 plugin \"GxVBassPreAmp\", a
pre-amplifier simulation modelled after the 1984 Vox Venue Bass 100 Pre Amp
Section."))))

(define-public gx-overdriver-lv2
  (let ((commit "ed71801987449414bf3adaa0dbfac68e8775f1ce")
        (revision "1"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-overdriver-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxOverDriver.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "13j614jh525fbkby79nnzwj0z1ac0c9wclyn5pfqvkmx6a7j24r8"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxOverDriver.lv2")
      (synopsis "Overdrive effect with level and tone control")
      (description "This package provides the LV2 plugin \"GxOverDriver\", an
overdrive effect."))))

(define-public gx-tone-mender-lv2
  (let ((commit "b6780b4a3e4782b3ed0e5882d6788f178aed138f")
        (revision "1"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-tone-mender-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxToneMender.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "07qdcfsvv2vdnfnjh91pfgvjdcs5y91nvwfm8c0z8fp6b4bk7a9q"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxToneMender.lv2")
      (synopsis "Clean boost with a 3-knob tonestack")
      (description "This package provides the LV2 plugin \"GxToneMender\", a
clean boost effect with a 3-knob tonestack."))))

(define-public gx-push-pull-lv2
  (let ((commit "7f76ae2068498643ac8671ee0930b13ee3fd8eb5")
        (revision "1"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-push-pull-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxPushPull.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "12f5hwck2irph0gjbj8xy8jqcqdwb8l1hlwf29k0clz52h1jhb5q"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxPushPull.lv2")
      (synopsis "Octave up push pull transistor fuzz simulation")
      (description "This package provides the LV2 plugin \"GxPushPull\", a
simulation of a push pull transistor fuzz effect with added high octave."))))

(define-public gx-suppa-tone-bender-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-suppa-tone-bender-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxSuppaToneBender.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "01x6bjmllkmvxfzc5xwdix7w021j26js71awv728cxsmkxgqw0zy"))))
    (home-page "https://github.com/brummer10/GxSuppaToneBender.lv2")
    (synopsis "Simulation of the Vox Suppa Tone Bender pedal")
    (description "This package provides the LV2 plugin
\"GxSuppaToneBender\", a simulation modelled after the Vox Suppa Tone Bender
pedal.")))

(define-public gx-saturator-lv2
  (let ((commit "2142b14a86a4e6f2ab69446160d90f23b1ed3939")
        (revision "4"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-saturator-lv2")
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSaturator.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "16mq0k50pachg61vw88hjmyla5zwy0drfhi4d3f9hviivcfigg03"))
                (file-name (git-file-name name version))))
      (home-page "https://github.com/brummer10/GxSaturator.lv2")
      (synopsis "Saturation effect")
      (description "This package provides the LV2 plugin \"GxSaturator\", a
saturation effect."))))

(define-public gx-hyperion-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-hyperion-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxHyperion.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1vx79s6s9if117y2g0ppdja2sv2wcny6xcfl3j1z4cipahnildxf"))))
    (home-page "https://github.com/brummer10/GxHyperion.lv2")
    (synopsis "Simulation of the Hyperion Fuzz pedal")
    (description "This package provides the LV2 plugin \"GxHyperion\", a
simulation of the Hyperion Fuzz pedal.")))

(define-public gx-voodoo-fuzz-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-voodoo-fuzz-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxVoodoFuzz.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1v0scphivri1fk4hl20j13f92i48mnx1zsil4hgnadsmm4nsfw43"))))
    (home-page "https://github.com/brummer10/GxVoodoFuzz.lv2")
    (synopsis "Fuzz effect modelled after the Voodoo Lab SuperFuzz")
    (description "This package provides the LV2 plugin \"GxVoodooFuzz\", a
simulation modelled after the Voodoo Lab SuperFuzz pedal.  It's basically a
Bosstone circuit, followed by the tone control of the FoxToneMachine in
parallel with a DarkBooster, followed by a volume control.")))

(define-public gx-super-fuzz-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-super-fuzz-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxSuperFuzz.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1jlljd9hlgfflbiizq47lv1xbbgjyx3v835mf24zmh1q5zsw4np4"))))
    (home-page "https://github.com/brummer10/GxSuperFuzz.lv2")
    (synopsis "Fuzz effect modelled after the UniVox SuperFuzz")
    (description "This package provides the LV2 plugin \"GxSuperFuzz\", an
analog simulation of the UniVox SuperFuzz pedal.  In this simulation the trim
pot, which is usually in the housing, is exposed as a control parameter.  It
adjusts the amount of harmonics.")))

(define-public gx-vintage-fuzz-master-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-vintage-fuzz-master-lv2")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/GxVintageFuzzMaster.lv2")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "02jb211z8rw2qr5r1z5mdxlqgiw6cbc319xpqplvn6k21c59mskv"))))
    (home-page "https://github.com/brummer10/GxVintageFuzzMaster.lv2")
    (synopsis "Fuzz effect simulation of the vintage Fuzz Master")
    (description "This package provides the LV2 plugin
\"GxVintageFuzzMaster\", a simulation of the vintage Fuzz Master pedal.")))

(define-public gx-slow-gear-lv2
  (let ((commit "5d37e775b0feef1d82feee94e2a7a2d7e57efe2d")
        (revision "3"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-slow-gear-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSlowGear.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "141mz69zkhk3lm54bb6wgpnghb92zm1ig7fv07240cmhydqji1q1"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxSlowGear.lv2")
      (synopsis "Slow gear audio effect")
      (description "This package provides the LV2 plugin \"GxSlowGear\", a
slow gear audio effect to produce volume swells."))))

(define-public gx-switchless-wah-lv2
  (let ((commit "7b08691203314612999f0ce2328cdc1161cd6665")
        (revision "2"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-switchless-wah-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSwitchlessWah.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "04jqfpncmrrqn34p21w4v9m2x5a5wsqwbm4f3byxvq4vcibwxzk2"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxSwitchlessWah.lv2")
      (synopsis "Wah emulation with switchless activation")
      (description "This package provides the LV2 plugin \"GxSwitchlessWah\",
a simulation of an analog Wah pedal with switchless activation."))))

(define-public rkrlv2
  ;; This commit corresponds to the beta_3 tag
  (let ((commit "7edcb4e29a358623bfd57fa2c27e5da60adfcec3")
        (revision "2"))
    (package
      (name "rkrlv2")
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/ssj71/rkrlv2")
                      (commit commit)))
                (sha256
                 (base32
                  "16i4ajrib7kb0abdcn4901g8a4lkwkp2fyqyms38dhqq84slyfjs"))
                (file-name (git-file-name name version))))
      (build-system cmake-build-system)
      (arguments '(#:tests? #f)) ; there are no tests
      (inputs
       (list fftw libsamplerate lv2))
      (native-inputs
       (list pkg-config))
      (home-page "https://github.com/ssj71/rkrlv2")
      (synopsis "Rakarrack effects ported to LV2 plugins")
      (description "This package provides the Rakarrack effects as LV2
plugins.  The ports are done such that hopefully when Rakarrack gets an active
maintainer these will get merged into the original project.")
      (license license:gpl2))))

(define-public mod-utilities
  (let ((commit "80ea3ea9f52fab7f191671f4810bf90fc955a046")
        (revision "2"))
    (package
      (name "mod-utilities")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/moddevices/mod-utilities")
                      (commit commit)))
                (file-name (string-append name "-" version "-checkout"))
                (sha256
                 (base32
                  "1v55zmzmlg0ka7341x5lsvb44amy17vk27s669ps1basd1bk5s5v"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f ; there are no tests
         #:make-flags
         (list (string-append "INSTALL_PATH="
                              (assoc-ref %outputs "out")
                              "/lib/lv2")
               (string-append "PREFIX=" (assoc-ref %outputs "out"))
               "CC=gcc")
         #:phases
         (modify-phases %standard-phases
           (delete 'configure))))
      (inputs
       (list lv2))
      (home-page "https://github.com/moddevices/mod-utilities")
      (synopsis "LV2 utility plugins")
      (description "This package provides LV2 audio utility plugins, such as
filters, crossovers, simple gain plugins without zipper noise, switch box
plugins, a switch trigger, a toggle switch, and a peakmeter.")
      (license license:gpl2+))))

(define-public qmidiarp
  (package
    (name "qmidiarp")
    (version "0.6.5")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/qmidiarp/qmidiarp/"
                                  version "/qmidiarp-" version ".tar.bz2"))
              (sha256
               (base32
                "043yh1p0rrbj1v840y27529m9260g55gvh1km8az4jxy7mns58r2"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "--enable-qt5")))
    (inputs
     (list qtbase-5 alsa-lib jack-1 liblo lv2))
    (native-inputs
     (list pkg-config qttools-5))
    (home-page "https://qmidiarp.sourceforge.net/")
    (synopsis "MIDI arpeggiator")
    (description "QMidiArp is an advanced MIDI arpeggiator, programmable step
sequencer and LFO.  It can hold any number of arpeggiator, sequencer, or LFO
modules running in parallel.")
    (license license:gpl2+)))

(define-public qmidiroute
  (package
    (name "qmidiroute")
    (version "0.4.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/alsamodular/QMidiRoute/"
                                  version "/qmidiroute-" version ".tar.bz2"))
              (sha256
               (base32
                "19v1ppbglgl3z9v7xdqc0k33w71cqq8a7d6ihvfs7iz77dygrih9"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "--enable-qt5")))
    (inputs
     (list qtbase-5 alsa-lib))
    (native-inputs
     (list pkg-config qttools-5))
    (home-page "https://alsamodular.sourceforge.net/")
    (synopsis "MIDI event router and filter")
    (description "QMidiRoute is a MIDI event router and filter.  MIDI note,
control change, program change and pitch bend events are logged, and can be
filtered, redirected and transformed into other events according to MIDI maps
defined as tabs in the main control surface.")
    (license license:gpl2+)))

(define-public seq24
  (package
    (name "seq24")
    (version "0.9.3")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://launchpad.net/seq24/trunk/"
                                  version "/+download/seq24-"
                                  version ".tar.bz2"))
              (sha256
               (base32
                "12dphdhnvfk1k0vmagi1v2lhyxjyj1j3cz6ksjw0ydcvid1x8ap2"))
              (patches (search-patches "seq24-rename-mutex.patch"))))
    (build-system gnu-build-system)
    (inputs (list alsa-lib gtkmm-2 jack-2))
    (native-inputs (list pkg-config))
    (home-page "https://launchpad.net/seq24/")
    (synopsis "Real-time MIDI sequencer")
    (description "Seq24 is a real-time MIDI sequencer.  It was created to
provide a very simple interface for editing and playing MIDI loops.")
    (license license:gpl2+)))

(define-public python-discogs-client
  (package
    (name "python-discogs-client")
    (version "2.3.12")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "python3-discogs-client" version))
              (sha256
               (base32
                "1zmib0i9jicv9fyphgkcrk418qmpv3l4p38ibl31sh237ki5xqw9"))))
    (build-system python-build-system)
    (propagated-inputs
     (list python-dateutil python-oauthlib python-requests))
    (home-page "https://github.com/joalla/discogs_client")
    (synopsis "Python client for the Discogs API")
    (description "This is the continuation of the official Discogs API
client for Python. It enables you to query the Discogs database for
information on artists, releases, labels, users, Marketplace listings,
and more.  It also supports OAuth 1.0a authorization, which allows you to
change user data such as profile information, collections and wantlists,
inventory, and orders.")
    (license license:bsd-2)))

(define-public libsmf
  (package
    (name "libsmf")
    (version "1.3")
    (source
     (origin
       (method url-fetch)
       ;; SF download page says development moved, but the link it points to
       ;; is gone (https://github.com/nilsgey/libsmf).  Someone else adopted
       ;; it but made no release so far (https://github.com/stump/libsmf).
       (uri (string-append "mirror://sourceforge/libsmf/libsmf/"
                           version "/libsmf-" version ".tar.gz"))
       (sha256
        (base32
         "16c0n40h0r56gzbh5ypxa4dwp296dan3jminml2qkb4lvqarym6k"))))
    (build-system gnu-build-system)
    (outputs '("out"
               "static")) ; 88KiB of .a files
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'install 'move-static-libraries
            (lambda _
              ;; Move static libraries to the "static" output.
              (let ((lib  (string-append #$output "/lib"))
                    (slib (string-append #$output:static "/lib")))
                (mkdir-p slib)
                (for-each (lambda (file)
                            (install-file file slib)
                            (delete-file file))
                          (find-files lib "\\.a$"))))))))
    (inputs
     (list readline glib))
    (native-inputs
     (list doxygen pkg-config))
    (home-page "http://libsmf.sourceforge.net/")
    (synopsis "Standard MIDI File format library")
    (description
     "LibSMF is a C library for handling SMF (\"*.mid\") files.  It
transparently handles conversions between time and pulses, tempo map handling
and more.  Full API documentation and examples are included.")
    (license license:bsd-2)))

(define-public lmms
  (package
    (name "lmms")
    (version "1.2.2")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/LMMS/lmms")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "11xgf461cnmq0jkgdgx5bddi87ammpik4whg1m4fcvd3i0d5i601"))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:tests? #f                       ; no tests
      ;; Qt 5 support must be explicitly enabled in the 1.2 stable versions of
      ;; LMMS, so try removing "-DWANT_QT5=ON" in later versions.
      ;; Also, explicitly disabling VST support gets rid of the in-tree
      ;; dependency on qt5-x11embed.
      #:configure-flags '(list "-DWANT_QT5=ON" "-DWANT_VST=OFF")
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'unpack-rpmalloc
            (lambda* (#:key inputs #:allow-other-keys)
              (copy-recursively (assoc-ref inputs "rpmalloc")
                                "src/3rdparty/rpmalloc/rpmalloc")))
          (add-before 'configure 'set-ldflags
            (lambda _
              (setenv "LDFLAGS"
                      (string-append
                       "-Wl,-rpath=\"" #$output "/lib/lmms"
                       ":" #$output "/lib/lmms/ladspa" "\"")))))))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("qttools-5" ,qttools-5)
       ;; rpmalloc is a public domain memory allocator. This version specified
       ;; below is the version required by LMMS.
       ;; To get the new commit of rpmalloc to use here, run
       ;;   `git submodule--helper list | grep rpmalloc | cut -f2 -d' '`
       ;; in the cloned LMMS repository.
       ("rpmalloc"
        ,(origin
           (method git-fetch)
           (uri (git-reference
                 (url "https://github.com/mjansson/rpmalloc")
                 (commit "b5bdc18051bb74a22f0bde4bcc90b01cf590b496")))
           (sha256
            (base32
             "0g9pls46iggg7rdm65vzfj8nyr3v2n5xkp54c4qbh9hhalpsw4ay"))))))
    (inputs
     (list alsa-lib
           carla
           fftwf
           fltk
           fluidsynth
           freetype
           jack-2
           ladspa
           libogg
           libsamplerate
           libsndfile
           libvorbis
           libxft
           portaudio
           qtbase-5
           qtx11extras
           sdl))
    (home-page "https://lmms.io/")
    (synopsis "Music composition tool")
    (description "LMMS is a digital audio workstation.  It includes tools for
sequencing melodies and beats and for mixing and arranging songs.  LMMS
includes instruments based on audio samples and various soft sythesizers.  It
can receive input from a MIDI keyboard.")
    (license license:gpl2+)))

(define-public stargate
  (package
    (name "stargate")
    (version "24.02.2")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/stargatedaw/stargate")
                    (commit (string-append "release-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0hy0pf6gcw4hjhsvb1x60m1v0wqm28j7cc91g1vcna2f42kk8gyh"))
              (modules '((guix build utils)))
              (snippet
               '(with-directory-excursion "src"
                  ;; Delete bundled libraries.
                  (delete-file-recursively "sg_py_vendor")
                  ;; Disable compiling and installing bundled libraries.
                  (substitute* "Makefile"
                    ((" sg_py_vendor") "")
                    (("install -m 755 vendor") "# install -m 755 vendor"))
                  ;; Import python modules from packaged libraries.
                  (substitute* (find-files "sglib" "\\.py$")
                    (("from sg_py_vendor ") "")
                    (("from sg_py_vendor.") "from "))
                  (substitute* "engine/tests/test_daw.c"
                    ;; Disable assignment of a string to an expression with
                    ;; array type which fails tests.
                    (("INSTALL_PREFIX =") "// INSTALL_PREFIX"))
                  ;; Disable manual tests requiring opening a browser.
                  (substitute* '("Makefile"
                                 "engine/Makefile"
                                 "engine/libcds/Makefile")
                    (("\\$\\(BROWSER\\)") "# $(BROWSER)"))))))
    (build-system gnu-build-system)
    (arguments
     (list #:test-target "tests"
           #:make-flags
           #~(list "PREFIX=/"
                   "LIBDIR=/lib"
                   "INCLUDEDIR=/include"
                   (string-append "DESTDIR=" #$output)
                   (string-append "CC=" #$(cc-for-target))
                   (string-append "CXX=" #$(cxx-for-target)))
           #:phases
           #~(modify-phases %standard-phases
               (add-after 'unpack 'patch-portaudio-path
                 (lambda* (#:key inputs #:allow-other-keys)
                   (substitute* "src/sgui/widgets/hardware_dialog.py"
                     (("\\\"libportaudio")
                      (string-append "\"" (assoc-ref inputs "portaudio")
                                     "/lib/libportaudio")))))
               (add-after 'patch-portaudio-path 'change-directory
                 (lambda _
                   (chdir "src")))
               (delete 'configure) ;no configure script
               (add-before 'build 'patch-paths
                 (lambda* (#:key inputs #:allow-other-keys)
                   (substitute* "test_parse.sh"
                     (("python") (which "python3")))
                   (with-directory-excursion "files/share"
                     (substitute* '"applications/stargate.desktop"
                       (("/usr") #$output)))))
               (replace 'build
                 (lambda* (#:key (make-flags '()) (parallel-build? #t)
                           #:allow-other-keys)
                   (apply invoke "make" "-Cengine"
                          `(,@(if parallel-build?
                                `("-j" ,(number->string (parallel-job-count)))
                                '())
                          ,@make-flags))))
               (add-before 'check 'check-setup
                 (lambda _
                   (setenv "HOME" "/tmp")
                   (setenv "LD_LIBRARY_PATH" (getenv "LIBRARY_PATH"))
                   ;; Test fails with AssertionError.
                   (delete-file "test/sglib/models/daw/routing/test_midi.py")))
               (add-after 'install 'wrap-program
                 (lambda* (#:key inputs #:allow-other-keys)
                   (wrap-program (string-append #$output "/bin/stargate")
                     `("GUIX_PYTHONPATH" ":" prefix
                       (,(getenv "GUIX_PYTHONPATH")))
                     `("PATH" ":" prefix
                       (,(getenv "PATH")))))))))
    (native-inputs
     (list pkg-config
           python-gcovr
           python-packaging
           python-pytest
           python-pytest-cov
           python-pytest-runner))
    (inputs
     (list alsa-lib
           bash-minimal
           fftw
           fftwf
           jq
           libsndfile
           portaudio
           portmidi
           python
           python-jinja2
           python-mido
           python-mutagen
           python-numpy
           python-psutil
           python-pymarshal
           python-pyqt-6
           python-pyyaml
           python-wavefile
           python-yq
           rubberband
           valgrind

           stargate-sbsms
           stargate-soundtouch))
    (home-page "https://github.com/stargatedaw/stargate")
    (synopsis "Digital audio workstation")
    (description
     "Stargate is a digital audio workstation with built-in instrument and
effect plugins and wave editor, providing innovative features, especially for
EDM production.")
    (license license:gpl3)))

(define-public liquidsfz
  (package
    (name "liquidsfz")
    (version "0.3.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/swesterfeld/liquidsfz")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0kijisxv8f8ihv8rk5cg1cmdh29zkr7i2ghds6wz0iq9mdkga12s"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:configure-flags '(list "--enable-shared")
      #:phases
      '(modify-phases %standard-phases
         (replace 'bootstrap
           (lambda _
             ;; The default 'bootstrap' phase would run 'autogen.sh', which
             ;; would try to run ./configure and fail due to unpatched
             ;; shebangs.
             (invoke "autoreconf" "-v" "--install"))))))
    (native-inputs
     (list autoconf automake libtool pkg-config))
    (inputs
     (list jack-2 libsndfile lv2 readline))
    (home-page "https://github.com/swesterfeld/liquidsfz")
    (synopsis "Sampler library")
    (description "The main goal of liquidsfz is to provide an SFZ sampler
implementation library that is easy to integrate into other projects.  A
standalone JACK client and an LV2 plugin is also available.")
    (license license:lgpl2.1+)))

(define-public sfizz
  (package
    (name "sfizz")
    (version "1.2.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/sfztools/sfizz"
                                  "/releases/download/" version
                                  "/sfizz-" version ".tar.gz"))
              (sha256
               (base32
                "1wsr3dpn7a7whqn480m02kp6n4raamnfi3imhf2q8k58md1yn9jw"))
              (modules '((guix build utils)))
              (snippet
               '(for-each delete-file-recursively
                          '("external/abseil-cpp"
                            ;; This package needs an unreleased version of
                            ;; simde.
                            ;; "external/simde"
                            "plugins/editor/external/vstgui4"
                            "plugins/vst"
                            "src/external/pugixml")))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:configure-flags
      #~(list "-DSFIZZ_LV2_UI=OFF"
              "-DSFIZZ_VST=OFF"
              "-DSFIZZ_VST2=OFF"
              "-DSFIZZ_TESTS=ON"
              "-DSFIZZ_USE_SYSTEM_ABSEIL=ON"
              "-DSFIZZ_USE_SYSTEM_PUGIXML=ON"
              ;; XXX: Guix SIMDe version 0.7.2 is not enough.
              ;; "-DSFIZZ_USE_SYSTEM_SIMDE=ON"
              )))
    (native-inputs
     (list pkg-config))
    (inputs
     (list abseil-cpp
           glib
           jack-2
           lv2
           libsamplerate
           pugixml
           simde))
    (home-page "https://sfz.tools/sfizz/")
    (synopsis "SFZ parser and synth library")
    (description "Sfizz provides an SFZ parser and synth C++ library.  It
includes LV2 plugins and a JACK standalone client.")
    (license license:bsd-2)))

(define-public musescore
  (package
    (name "musescore")
    (version "4.3.2")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/musescore/MuseScore")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1hx0l6d7avyfbh88hwn01h9q51mgd9zix91q2kgg1ax73pqxhfs2"))
       (modules '((guix build utils)))
       (snippet
        '(begin
           ;; Delete precompiled binaries.
           (delete-file-recursively "src/diagnostics/crashpad_handler")
           (substitute* "src/diagnostics/CMakeLists.txt"
             (("install") "#install"))))))
    (build-system qt-build-system)
    (arguments
     `(#:configure-flags
       `("-DDOWNLOAD_SOUNDFONT=OFF"
         "-DBUILD_DIAGNOSTICS=OFF"
         "-DMUSESCORE_BUILD_CONFIG=release"
         "-DUSE_SYSTEM_FREETYPE=ON")
       ;; There are tests, but no simple target to run.  The command used to
       ;; run them is:
       ;;
       ;;   make debug && sudo make installdebug && cd \
       ;;   build.debug/mtest && make && ctest
       ;;
       ;; Basically, it requires to start a whole new build process.
       ;; So we simply skip them.
       #:tests? #f))
    (native-inputs
     (list git-minimal pkg-config qttools-5))
    (inputs
     (list alsa-lib
           freetype
           `(,gtk+ "bin")               ;for gtk-update-icon-cache
           jack-1
           lame
           libogg
           libsndfile
           libvorbis
           portaudio
           portmidi
           pulseaudio
           python
           qtbase-5
           qtdeclarative-5
           qtgraphicaleffects
           qtnetworkauth-5
           qtquickcontrols-5
           qtquickcontrols2-5
           qtscript
           qtsvg-5
           qtx11extras
           qtxmlpatterns))
    (propagated-inputs
     (list `(,alsa-plugins "pulseaudio"))) ;for libasound_module_conf_pulse.so
    (synopsis "Music composition and notation software")
    (description
     "MuseScore is a music score typesetter.  Its main purpose is the creation
of high-quality engraved musical scores in a WYSIWYG environment.

It supports unlimited staves, linked parts and part extraction, tablature,
MIDI input, percussion notation, cross-staff beaming, automatic transposition,
lyrics (multiple verses), fretboard diagrams, and in general everything
commonly used in sheet music.  Style options and style sheets to change the
appearance and layout are provided.

MuseScore can also play back scores through the built-in sequencer and SoundFont
sample library.")
    (home-page "https://musescore.org")
    (license license:gpl3)))

(define-public muse-sequencer
  (package
    (name "muse-sequencer")
    (version "4.2.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/muse-sequencer/muse")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "13b9xx8x8yr58r8765xn770kfn3k2whmvmpl2657nc19max9n61g"))))
    (build-system qt-build-system)
    (arguments
     (list
      #:tests? #f                       ; there is no test target
      #:configure-flags
      #~(list "-DENABLE_VST_NATIVE=OFF"
              (string-append "-DCMAKE_EXE_LINKER_FLAGS="
                             "-Wl,-rpath=" #$output "/lib/muse-"
                             #$(version-major+minor version) "/modules")
              (string-append "-DCMAKE_SHARED_LINKER_FLAGS="
                             "-Wl,-rpath=" #$output "/lib/muse-"
                             #$(version-major+minor version) "/modules"))
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'chdir
            (lambda _ (chdir "src"))))))
    (inputs
     (list alsa-lib
           dssi
           fluidsynth
           glib
           jack-1
           ladspa
           libinstpatch
           liblo
           libsamplerate
           libsndfile
           lilv
           lrdf
           lv2
           pcre
           pulseaudio                   ; required by rtaudio
           qtbase-5
           qtsvg-5
           qtwayland-5
           rtaudio
           rubberband
           sord))
    (native-inputs
     (list extra-cmake-modules
           perl
           pkg-config
           python-wrapper
           qttools-5))
    (home-page "https://muse-sequencer.github.io/")
    (synopsis "MIDI/Audio sequencer")
    (description "MusE is a MIDI/Audio sequencer with recording and editing
capabilities.  Its audio sequencer supports the LADSPA, DSSI, and LV2 audio
plugin formats; the MIDI sequencer provides a piano roll, a drum editor, a
list view, and a score editor.  MusE aims to be a complete multitrack virtual
studio.")
    (license license:gpl2+)))

(define-public gsequencer
  (package
    (name "gsequencer")
    (version "6.16.8")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://git.savannah.gnu.org/git/gsequencer")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1qp78j6gicm4ixkx5ihn2lilw3a2863y05zvw8w5gigyc2zmbqpp"))))
    (build-system glib-or-gtk-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'build 'prepare-x-for-test
           (lambda _
             (system "Xvfb &")
             (setenv "DISPLAY" ":0"))))))
    (native-inputs
     (list autoconf
           automake
           cunit
           gettext-minimal
           gobject-introspection
           gtk-doc/stable
           libtool
           libxslt
           pkg-config
           xorg-server-for-tests))
    (inputs
     (list alsa-lib
           dssi
           fftw
           gst-plugins-base
           gstreamer
           gtk
           jack-1
           json-glib
           ladspa
           libinstpatch
           libsamplerate
           libsndfile
           libsoup
           libxcrypt
           libxml2
           lv2
           pulseaudio
           `(,util-linux "lib")
           webkitgtk))
    (home-page "https://nongnu.org/gsequencer/")
    (synopsis "Advanced Gtk+ Sequencer")
    (description
     "GSequencer allows you to play, capture and create music.  There is a piano
roll, automation and wave form editor.  It has machines for playing drum samples,
Soundfont2 sound containers and synthesizers.  They usually can be connected to a
MIDI input source (instrument).  It has support for various audio backends like
ALSA, Pulseaudio, JACK, OSSv4 and CoreAudio.")
    (license license:gpl3+)))

(define-public dssi
  (package
    (name "dssi")
    (version "1.1.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/dssi/dssi/" version
                    "/dssi-" version ".tar.gz"))
              (sha256
               (base32
                "0kl1hzhb7cykzkrqcqgq1dk4xcgrcxv0jja251aq4z4l783jpj7j"))))
    (build-system gnu-build-system)
    (inputs
     (list alsa-lib
           jack-1
           ladspa
           libsamplerate
           libsndfile
           liblo))
    (native-inputs
     (list pkg-config))
    (synopsis "Audio plugin API for soft synths and effects")
    (description "DSSI is a plugin API for software instruments with user
interfaces, permitting them to be hosted in-process by audio applications.
It is intended to be simple, GUI-toolkit-agnostic, and slightly biased
towards familiarity with MIDI.  The DSSI distribution package contains
a JACK/ALSA-sequencer reference host and some plugins as well as the
specification and header.")
    (home-page "https://dssi.sourceforge.net/")
    ;; The DSSI interface is LGPL2.1+, some tests and examples are GPL2+.
    ;; The vast majority of examples are in the public domain.
    (license (list license:lgpl2.1+ license:gpl2+))))

(define-public rosegarden
  (package
    (name "rosegarden")
    (version "24.06")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://sourceforge/rosegarden/rosegarden/"
                           (version-major+minor version) "/"
                           "rosegarden-" version ".tar.xz"))
       (sha256
        (base32 "09www13ndba14krzycwm44qgcy7j11wa6a6xiqh6i2hjghlx8v46"))))
    (build-system cmake-build-system)
    (arguments
     (list
      #:configure-flags #~(list "-DCMAKE_BUILD_TYPE=Release")
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-tests
            (lambda _
              (substitute* "CMakeLists.txt"
                (("(BUILD_TESTING .* )OFF" _ prefix)
                 (string-append prefix "ON"))
                ;; Make tests work.
                ((" -fvisibility=hidden") ""))))
          (add-after 'unpack 'fix-references
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "src/gui/general/ProjectPackager.cpp"
                (("\"flac\\>")
                 (string-append "\"" (search-input-file inputs "/bin/flac")))
                (("\"wavpack\\>")
                 (string-append "\"" (search-input-file inputs "/bin/wavpack")))
                (("\"wvunpack\\>")
                 (string-append "\"" (search-input-file inputs "/bin/wvunpack")))
                (("\"bash\\>")
                 (string-append "\"" (search-input-file inputs "/bin/bash")))
                (("\"tar\\>")
                 (string-append "\"" (search-input-file inputs "/bin/tar"))))
              (substitute* "src/gui/general/LilyPondProcessor.cpp"
                (("\"convert-ly\\>")
                 (string-append "\"" (search-input-file inputs "/bin/convert-ly")))
                (("\"lilypond\\>")
                 (string-append "\"" (search-input-file inputs "/bin/lilypond"))))))
          (add-after 'unpack 'make-reproducible
            (lambda _
              ;; Prevent Last-Modified from being written.
              ;; The "*.qm" files that are used in locale.qrc would have a new
              ;; mtime otherwise that is written into qrc_locale.cpp in the
              ;; end - except when we disable it.
              (substitute* "src/CMakeLists.txt"
                (("COMMAND [$][{]QT_RCC_EXECUTABLE[}]")
                 "COMMAND ${QT_RCC_EXECUTABLE} --format-version 1")
                ;; Extraneous.
                ;;(("qt5_add_resources[(]rg_SOURCES ../data/data.qrc[)]")
                ;; "qt5_add_resources(rg_SOURCES ../data/data.qrc OPTIONS --format-version 1)")
                )
              ;; Make hashtable traversal order predicable.
              (setenv "QT_RCC_TEST" "1"))) ; important
          (add-before 'check 'prepare-check
            (lambda _
              (setenv "QT_QPA_PLATFORM" "offscreen")
              ;; Tests create files in $HOME/.local/share/rosegarden and
              ;; expect permissions set to 0700.
              (mkdir-p "/tmp/foo")
              (chmod "/tmp/foo" #o700)
              (setenv "HOME" "/tmp/foo")
              (setenv "XDG_RUNTIME_DIR" "/tmp/foo")))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (when tests?
                ;; Skip a failing test.
                (invoke "ctest" "-E" "test_notationview_selection")))))))
    (inputs
     (list alsa-lib
           bash-minimal
           dssi
           flac
           fftwf
           jack-1
           ladspa
           liblo
           libsamplerate
           lilypond
           lrdf
           qtbase-5
           shared-mime-info
           tar
           lirc
           wavpack
           zlib))
    (native-inputs
     (list pkg-config qttools-5))       ;for qtlinguist
    (synopsis "Music composition and editing environment based around a MIDI
sequencer")
    (description "Rosegarden is a music composition and editing environment
based around a MIDI sequencer that features a rich understanding of music
notation and includes basic support for digital audio.")
    (home-page "https://www.rosegardenmusic.com/")
    (license license:gpl2)))

(define-public patchmatrix
  (package
    (name "patchmatrix")
    (version "0.16.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/OpenMusicKontrollers/patchmatrix")
                    (commit version)))
              (file-name (git-file-name "patchmatrix" version))
              (sha256
               (base32
                "020vp7zzxxzzjfic57vkpg68dm8hi98ilr1bj88xjsv6i47xmjbn"))))
    (build-system meson-build-system)
    (arguments '(#:tests? #f))          ; no test target
    (inputs
     (list jack-1 lv2 mesa))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/OpenMusicKontrollers/patchmatrix")
    (synopsis "Simple JACK patch bay")
    (description "PatchMatrix is a patch bay for the JACK audio connection
kit.  It provides a patch bay in flow matrix style for audio, MIDI, CV, and
OSC connections.")
    (license license:artistic2.0)))

(define-public luppp
  (let ((revision "1")
        ;; The last release was in 2019.  Since then some build fixes have
        ;; been added.
        (commit "23da1497f80dbace48b7807afd3570c57a4d5994"))
    (package
      (name "luppp")
      (version (git-version "1.2.1" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/openAVproductions/openAV-Luppp")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1rjl7fwnqq1gxa3haw1z0p1mld23i194sc43m03h9isagkwxrx9d"))))
      (build-system meson-build-system)
      (inputs
       (list cairo
             ntk
             liblo
             jack-2
             libsndfile
             libsamplerate))
      (native-inputs (list pkg-config cmake-minimal))
      (home-page "http://openavproductions.com/luppp/")
      (synopsis "Live performance tool")
      (description
       "Luppp is a music creation tool, intended for live use.  The focus is on real
time processing and a fast and intuitive workflow.  With extensive MIDI
mapping support, you can get looping just how you like!")
      (license license:gpl3+))))

(define-public fabla
  (package
    (name "fabla")
    (version "1.4")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/openAVproductions/openAV-Fabla")
                    (commit (string-append "release-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "13675ljfcbmxw9jdjrpn9wpvl69qxxc1hg2y9sfjkf4khajpapg9"))))
    (build-system cmake-build-system)
    (arguments '(#:tests? #f)) ;there are none
    (inputs (list ntk cairomm libsndfile))
    (native-inputs (list pkg-config lv2 mesa))
    (home-page "http://openavproductions.com/fabla/")
    (synopsis "Sampler LV2 plugin")
    (description
     "Fabla is an LV2 drum sampler plugin instrument.  It is ideal for loading up
your favorite sampled sounds and bashing away on a MIDI controller.")
    (license license:gpl2+)))

(define-public sorcer
  (let ((revision "2")
        ;; The last release was in 2016.  Since then a couple of commits have
        ;; been added to fix build problems, so we take this arbitrary recent
        ;; commit.
        (commit "94107b26e3e00e32504c8fb3fbf7572514d3b6bc"))
    (package
      (name "sorcer")
      (version (git-version "1.1.3" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/openAVproductions/openAV-Sorcer")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0md3d9h63ngrlh53mj1fmwhmnlxr7bqzpfb3wk9427v5n0y6yn48"))
                (snippet
                 '(delete-file "faust/main.cpp"))))
      (build-system cmake-build-system)
      (arguments
       `(#:tests? #f                    ;no tests included
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'build-faust-sources
             (lambda* (#:key inputs #:allow-other-keys)
               (with-directory-excursion "faust"
                 (invoke "faust" "-i"
                         "-a" "lv2.cpp"
                         "-o" "main.cpp" "main.dsp")))))))
      (inputs (list boost lv2 ntk))
      (native-inputs (list faust-2 pkg-config which))
      (home-page "http://openavproductions.com/sorcer/")
      (synopsis "Wavetable LV2 plugin synth")
      (description "Sorcer is a wavetable LV2 plugin synthesizer, targeted at
the electronic or dubstep genre.")
      (license license:gpl3+))))

(define-public sonivox-eas
  (package
    (name "sonivox-eas")
    (version "1.3.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/pedrolcl/Linux-SonivoxEas")
                    (commit (string-append "v" version))))
              (file-name (string-append name "-" version "-checkout"))
              (sha256
               (base32
                "1ygmlrsdzxii2dvj6id2ai3xv3klw2x67ip5rcp823jzczl0wpjd"))))
    (build-system cmake-build-system)
    (arguments '(#:tests? #f)) ; there are no tests
    (inputs
     (list alsa-lib drumstick pulseaudio qtbase-5))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/pedrolcl/Linux-SonivoxEas")
    (synopsis "MIDI synthesizer library")
    (description "This project is a real time General MIDI synthesizer based
on the Sonivox EAS Synthesizer by Google.  It does not need external
soundfonts, using embedded samples instead.")
    ;; Sonivox is released under the ASL2.0; the rest of the code is under
    ;; GPLv2+.
    (license (list license:gpl2+ license:asl2.0))))

(define-public whysynth
  (package
    (name "whysynth")
    (version "20170701")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://smbolton.com/whysynth/whysynth-"
                                  version ".tar.bz2"))
              (sha256
               (base32
                "02qbn0hbvn1iym4zxv35b201blg31yjpgh71h8db0j5zls2xc0m6"))))
    (build-system gnu-build-system)
    (inputs
     (list dssi
           liblo
           fftwf
           gtk+-2
           ladspa
           alsa-lib))
    (native-inputs
     (list pkg-config))
    (home-page "http://smbolton.com/whysynth.html")
    (synopsis "DSSI software synthesizer")
    (description "WhySynth is a versatile softsynth which operates as a plugin
for the DSSI Soft Synth Interface.  A brief list of features:

@enumerate
@item 4 oscillators, 2 filters, 3 LFOs, and 5 envelope generators per voice.
@item 11 oscillator modes: minBLEP, wavecycle, chorused wavecycle,
  asynchronous granular, three FM modes, waveshaper, noise, PADsynth, and phase
  distortion.
@item 10 filter modes.
@item flexible modulation and mixdown options, plus effects.
@end enumerate
")
    (license license:gpl2+)))

(define-public libdiscid
  (package
    (name "libdiscid")
    (version "0.6.4")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "http://ftp.musicbrainz.org/pub/musicbrainz/libdiscid/libdiscid-"
             version ".tar.gz"))
       (sha256
        (base32 "10mj1hwv1598nsi7jw5di0pfcwk36g4rr6kl7gi45m7ak8f8ypnx"))))
    (arguments `(#:test-target "check"))
    (build-system cmake-build-system)
    (home-page "https://musicbrainz.org/doc/libdiscid")
    (synopsis "Disc id reader library")
    (description "libdiscid is a C library for creating MusicBrainz and freedb
disc IDs from audio CDs.  It reads a CD's table of contents (TOC) and generates
an identifier which can be used to lookup the CD at MusicBrainz.  Additionally,
it provides a submission URL for adding the disc ID to the database and gathers
ISRCs and the MCN (=UPC/EAN) from disc.")
    (license license:lgpl2.1+)))

(define-public python-discid
  (package
    (name "python-discid")
    (version "1.1.1")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "discid" version))
       (sha256
        (base32
         "1fgp67nhqlbvhhwrcxq5avil7alpzw4s4579hlyvxzbphdnbz8vq"))))
    (build-system python-build-system)
    (inputs
     (list libdiscid))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'build 'set-libdiscid
           ;; Set path of libdiscid
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((discid (assoc-ref inputs "libdiscid")))
               (substitute* "discid/libdiscid.py"
                 (("lib_name = (.*)$" all name)
                  (string-append "lib_name = \"" discid
                                 "/lib/libdiscid.so.0\"\n")))
               #t))))))
    (home-page "https://python-discid.readthedocs.io/")
    (synopsis "Python bindings for Libdiscid")
    (description
     "This package provides Python bindings for the Libdiscid library.  The
main purpose is the calculation of @url{https://musicbrainz.org/doc/Disc%20ID,
Disc IDs} for use with the MusicBrainz database.  Additionally the disc
@dfn{Media Catalog Number} (MCN) and track @dfn{International Standard
Recording Code} (ISRC) can be extracted.}")
    (license license:lgpl3+)))

(define-public libmusicbrainz
  (package
    (name "libmusicbrainz")
    (version "5.1.0")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "https://github.com/metabrainz/libmusicbrainz/releases/download/release-"
             version "/libmusicbrainz-" version ".tar.gz"))
       (sha256
        (base32
         "0ikb9igyyk28jm34raxfzkw2qyn4nzzwsymdyprp7cmvi6g2ajb7"))))
    (build-system cmake-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'fix-build
           (lambda _
             (substitute* "src/CMakeLists.txt"
               (("\\*.inc") ""))))
         (replace 'check
           (lambda _
             ;; requires network connections
             ;; (invoke "tests/mbtest")
             (invoke "tests/ctest")
             #t)))))
    (inputs (list neon libxml2))
    (native-inputs (list pkg-config))
    (home-page "https://musicbrainz.org/doc/libmusicbrainz")
    (synopsis "MusicBrainz client library")
    (description "The MusicBrainz Client Library (libmusicbrainz), also known as
mb_client, is a development library geared towards developers who wish to add
MusicBrainz lookup capabilities to their applications.")
    (license license:lgpl2.1+)))

(define-public perl-musicbrainz-discid
  (package
    (name "perl-musicbrainz-discid")
    (version "0.06")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://cpan/authors/id/N/NJ/NJH/MusicBrainz-DiscID-"
                    version ".tar.gz"))
              (sha256
               (base32
                "1azc91jnwa3gdmy9pc8mflakgvsvf69ywwlqllxmdzwpk386w2xs"))))
    (build-system perl-build-system)
    (native-inputs (list pkg-config which))
    (inputs (list libdiscid))
    (home-page "https://metacpan.org/release/MusicBrainz-DiscID")
    (synopsis "Perl interface to the MusicBrainz libdiscid library")
    (description
     "The @code{MusicBrainz::DiscID} module is a Perl interface to the
MusicBrainz libdiscid library, allowing you to manipulate digital audio
compact disc (CDDA) identifiers.")
    (license license:gpl2)))

(define-public perl-webservice-musicbrainz
  (package
    (name "perl-webservice-musicbrainz")
    (version "1.0.5")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://cpan/authors/id/B/BF/BFAIST/WebService-MusicBrainz-"
                    version ".tar.gz"))
              (sha256
               (base32
                "16chs1l58cf000d5kalkyph3p31ci73p1rlyx98mfv10d2cq6fsj"))))
    (build-system perl-build-system)
    (arguments
     ;; Tests try to connect to http://musicbrainz.org.
     '(#:tests? #f))
    (native-inputs
     (list perl-module-build))
    (propagated-inputs
     (list perl-mojolicious))
    (home-page "https://metacpan.org/release/WebService-MusicBrainz")
    (synopsis "Web service API to the MusicBrainz database")
    (description
     "This module searches the MusicBrainz database through their web service
at @code{musicbrainz.org}.")
    (license license:perl-license)))

(define-public clyrics
  (package
    (name "clyrics")
    (version "0.16")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/trizen/clyrics")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1izlqnzr1a504djhzk1a5k8dwwrkd5iyjfsfm5x48sb3vjlr1fr3"))))
    (build-system trivial-build-system)
    (inputs
     (list bash ; for the wrapped program
           perl
           perl-www-mechanize
           perl-lwp-protocol-https
           ;; Required or else LWP will fail with "GET https://www.google.com/ ==>
           ;; 500 Can't verify SSL peers without knowing which Certificate
           ;; Authorities to trust".
           perl-mozilla-ca))
    (arguments
     `(#:modules ((guix build utils))
       #:builder (begin
                   (use-modules (guix build utils)
                                (ice-9 match)
                                (srfi srfi-26))
                   (let* ((source (assoc-ref %build-inputs "source"))
                          (output (assoc-ref %outputs "out")))
                     (setenv "PATH"
                             (string-append
                              (assoc-ref %build-inputs "bash") "/bin" ":"
                              (assoc-ref %build-inputs "perl") "/bin" ":"))
                     (copy-recursively source (getcwd))
                     (patch-shebang "clyrics")
                     (substitute* "clyrics"
                       (("/usr/share") output))
                     (install-file "clyrics" (string-append output "/bin"))
                     (wrap-program (string-append output "/bin/clyrics")
                       `("PERL5LIB" ":" =
                         ,(delete
                           ""
                           (map (match-lambda
                                 (((?  (cut string-prefix? "perl-" <>) name) . dir)
                                  (string-append dir "/lib/perl5/site_perl"))
                                 (_ ""))
                                %build-inputs))))
                     (copy-recursively "plugins" (string-append output "/clyrics"))
                     #t))))
    (home-page "https://github.com/trizen/clyrics")
    (synopsis "Extensible lyrics fetcher")
    (description
     "Clyrics is an extensible command-line tool to fetch the lyrics of songs.
It can be used in daemon mode along with the Music-on-Console (MOC) and cmus
console music players.")
    (license license:gpl3+)))

(define-public demlo
  (let ((commit "985f81047a67c795e67f628b550064558476a7c3")
        (revision "1"))
    (package
      (name "demlo")
      (version (git-version "3.8" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url
                "https://gitlab.com/ambrevar/demlo")
               (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32
           "1wx7pwgvg1fiq55jdc22353frcdlz548g97dy4j353lqxy8vxfyj"))))
      (build-system go-build-system)
      (native-inputs
       (list lua
             go-github-com-aarzilli-golua
             go-gitlab-com-ambrevar-damerau
             go-gitlab-com-ambrevar-golua-unicode
             go-github-com-mgutz-ansi
             go-github-com-michiwend-gomusicbrainz
             go-github-com-stevedonovan-luar
             go-github-com-wtolson-go-taglib
             go-github-com-yookoala-realpath))
      (inputs
       (list bash-minimal chromaprint ffmpeg))
      (arguments
       `(#:go ,go-1.17
         #:import-path "gitlab.com/ambrevar/demlo"
         #:phases
         (modify-phases %standard-phases
           (add-after 'install 'wrap-program
             (lambda* (#:key inputs outputs #:allow-other-keys)
               (let ((out (assoc-ref outputs "out"))
                     (ffmpeg (assoc-ref inputs "ffmpeg"))
                     (chromaprint (assoc-ref inputs "chromaprint")))
                 (wrap-program (string-append out "/bin/demlo")
                   `("XDG_DATA_DIRS" ":" prefix (,out))
                   `("PATH" ":" prefix
                     ,(map (lambda (dir)
                             (string-append dir "/bin:"
                                            dir "/sbin"))
                           (list ffmpeg chromaprint)))))))
           (add-after 'install 'install-scripts
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
                      (root (string-append out "/src/gitlab.com/ambrevar/demlo"))
                      (xdg-data-dirs (string-append out "/demlo")))
                 (copy-recursively (string-append root "/actions")
                                   (string-append xdg-data-dirs "/actions"))
                 (copy-recursively (string-append root "/scripts")
                                   (string-append xdg-data-dirs "/scripts"))
                 (install-file (string-append root "/config.lua") xdg-data-dirs)
                 ;; TODO: Test fish completion.
                 (install-file (string-append root "/completion/demlo.fish")
                               (string-append
                                out "/share/fish/vendor_completions.d"))))))))
      (home-page "https://gitlab.com/ambrevar/demlo")
      (synopsis "Dynamic and extensible music library organizer")
      (description "Demlo is a music library organizer.  It can encode, fix
case, change folder hierarchy according to tags or file properties, tag from
an online database, copy covers while ignoring duplicates or those below a
quality threshold, and much more.  It makes it possible to manage your
libraries uniformly and dynamically.  You can write your own rules to fit your
needs best.

Demlo can address any of these recurring music library issues (and much more):

@itemize
@item Fix the lack of folder structure.
@item Normalize tags, fix their case, chose which tags to keep and which to
discard.
@item Handle lossy and lossless audio differently.
@item Handle mp3 id3tags hell...
@item Handle multiple covers, whether embedded and/or external, resize covers,
discard bad quality ones.
@end itemize\n")
      (license license:expat))))

(define-public fmit
  (package
    (name "fmit")
    (version "1.2.14")
    (source (origin
	      (method git-fetch)
	      (uri (git-reference
		    (url "https://github.com/gillesdegottex/fmit/")
		    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
	      (sha256
               (base32
                "1q062pfwz2vr9hbfn29fv54ip3jqfd9r99nhpr8w7mn1csy38azx"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
	 (delete 'configure)
	 (add-before 'build 'qmake
	   (lambda _
	     (let ((out (assoc-ref %outputs "out")))
               (invoke "qmake"
                       "fmit.pro"
                       (string-append "PREFIX=" out)
                       (string-append "PREFIXSHORTCUT=" out)
                       "CONFIG+=acs_qt acs_alsa acs_jack acs_portaudio"))))
         (add-after 'install 'wrap-executable
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (wrap-program (string-append out "/bin/fmit")
                 `("QT_PLUGIN_PATH" ":" prefix
                   ,(map (lambda (label)
                           (string-append (assoc-ref inputs label)
                                          "/lib/qt5/plugins"))
                         '("qtbase" "qtmultimedia" "qtsvg")))
                 `("QML2_IMPORT_PATH" ":" prefix
                   ,(map (lambda (label)
                           (string-append (assoc-ref inputs label)
                                          "/lib/qt5/qml"))
                         '("qtmultimedia"))))))))))
    (inputs
     (list alsa-lib
           bash-minimal
           fftw
           jack-1
           portaudio
           qtbase-5
           qtmultimedia-5
           qtsvg-5))
    (native-inputs
     (list gettext-minimal hicolor-icon-theme itstool qttools-5))
    (synopsis "Musical instrument tuner")
    (description "FMIT is a graphical utility for tuning musical instruments,
with error and volume history, and advanced features.")
    (home-page "https://gillesdegottex.github.io/fmit/")
    ;; Most of the code is under GPL2+, but some abstract or helper classes
    ;; are under LGPL2.1.
    (license (list license:gpl2+ license:lgpl2.1))))

(define-public pragha
  (package
    (name "pragha")
    (version "1.3.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/pragha-music-player/pragha/"
                                  "releases/download/v" version "/pragha-" version
                                  ".tar.bz2"))
              (sha256
               (base32
                "19kbhq99bkimx3aqrdzln0vlr4slkpx6kq66j731jvqyq76nlkp5"))))
    (build-system glib-or-gtk-build-system)
    (native-inputs
     (list intltool pkg-config))
    (inputs
     (list bash-minimal
           glib
           grilo
           gstreamer
           gst-plugins-base
           gst-plugins-good
           gtk+
           libcddb
           libcdio
           libcdio-paranoia
           libgudev
           libnotify
           libpeas
           libsoup
           sqlite
           taglib))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'install 'wrap-program
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
                   (gst-plugin-path (getenv "GST_PLUGIN_SYSTEM_PATH")))
               (wrap-program (string-append out "/bin/pragha")
                 `("GST_PLUGIN_SYSTEM_PATH" ":" prefix
                   (,gst-plugin-path)))))))))
    (home-page "https://pragha-music-player.github.io")
    (synopsis "Music player")
    (description "Pragha is a lightweight music player based on Gtk and
sqlite.  It is constructed to be fast, light, and simultaneously tries to be
complete without obstructing your daily work.")
    (license license:gpl3+)))

(define-public playerctl
  (package
    (name "playerctl")
    (version "2.4.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/altdesktop/playerctl")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0ij065blj3h5v6iivvpmgh1095vicj1nc7hp1nhlhpqagd98l89s"))))
    (build-system meson-build-system)
    (arguments
     `(#:configure-flags '("-Dgtk-doc=false")))
    (native-inputs
     `(("glib:bin" ,glib "bin")
       ("pkg-config" ,pkg-config)
       ("gobject-introspection" ,gobject-introspection)))
    (synopsis "Control MPRIS-supporting media player applications")
    (description
     "Playerctl is a command-line utility and library for controlling media
players that implement the MPRIS D-Bus Interface Specification.  Playerctl
makes it easy to bind player actions, such as play and pause, to media keys.
You can also get metadata about the playing track such as the artist and title
for integration into status line generators or other command-line tools.")
    (home-page "https://github.com/altdesktop/playerctl")
    (license license:lgpl3+)))

(define-public artyfx
  (package
    (name "artyfx")
    (version "1.3.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url
                     "https://github.com/openAVproductions/openAV-ArtyFX")
                    (commit (string-append "release-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0cxikdnxgjk5gp6kmml4dx2jy2cy4x0c837h7bwraj2pfz0nfgqq"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f                                ; no tests included
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'remove-architecture-specific-flags
           (lambda _
             (substitute* "CMakeLists.txt"
               (("-msse2 -mfpmath=sse") ""))
             #t)))))
    (inputs
     (list cairo libsndfile))
    (native-inputs
     (list pkg-config lv2))
    (home-page "http://openavproductions.com/artyfx/")
    (synopsis "Audio effect LV2 plugin bundle")
    (description "ArtyFX is an LV2 plugin bundle of artistic real-time audio
effects.  It contains a bitcrusher, delay, distortion, equalizer, compressor,
and reverb.")
    (license license:gpl2+)))

(define-public lsp-plugins
  (package
    (name "lsp-plugins")
    (version "1.2.15")
    (source
      (origin
        (method url-fetch)
        (uri (string-append "https://github.com/lsp-plugins/lsp-plugins"
                            "/releases/download/" version
                            "/lsp-plugins-src-" version ".tar.gz"))
        (sha256
         (base32 "1bpkbmy8djz304rlsf9zp7bkyc874gnpfihkigqg4fj667x2xfcj"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:make-flags
      #~(list (string-append "CC=" #$(cc-for-target)))
      #:phases
      #~(modify-phases %standard-phases
          (replace 'configure
            (lambda _
              (invoke "make" "config"
                      "STRICT=1"
                      "TEST=1"
                      "FEATURES=clap doc jack ladspa lv2 ui vst2 xdg"
                      (string-append "PREFIX=" #$output)
                      (string-append "ETCDIR=" #$output "/etc"))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (when tests?
                (invoke ".build/host/lsp-plugin-fw/lsp-plugins-test" "utest"))))
          (add-after 'install 'move-large-subdirs
            (lambda _
              (define (move-to-output output path)
                (let ((source (string-append #$output path))
                      (target (string-append output path)))
                  (mkdir-p (dirname target))
                  (rename-file source target)))
              (move-to-output #$output:doc "/share/doc") ; 29MB
              (move-to-output #$output:lv2 "/lib/lv2") ; 32MB
              (move-to-output #$output:bin "/bin") ; Avoid cluttering xdg menu
              (move-to-output #$output:bin "/share")
              (move-to-output #$output:bin "/etc"))))))
    (inputs
     (list cairo
           freetype
           jack-2
           libsndfile
           libx11
           libxrandr
           mesa))
    (native-inputs (list pkg-config php))
    (outputs '("out" "doc" "lv2" "debug"))
    (synopsis "Audio plugin collection")
    (description "LSP (Linux Studio Plugins) is a collection of audio
plugins available as LADSPA/LV2 plugins and as standalone JACK
applications.")
    (home-page "https://lsp-plug.in/")
    (license license:lgpl3)))

(define-public sherlock-lv2
  (package
    (name "sherlock-lv2")
    (version "0.24.0")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "https://git.open-music-kontrollers.ch/lv2/"
             "sherlock.lv2/snapshot/sherlock.lv2-"
             version ".tar.xz"))
       (sha256
        (base32
         "08gjfx7vrsx9zvj04j8cr3vscxmq6jr2hbdi6dfgp1l1dnnpxsgq"))))
    (build-system meson-build-system)
    (inputs
     (list glu libx11 mesa sratom))
    (native-inputs
     (list flex pkg-config))
    (synopsis "Investigative LV2 plugin bundle")
    (description "The Sherlock plugin bundle contains LV2 plugins for
visualizing LV2 atom, MIDI and OSC events.  They can be used for monitoring
and debugging of event signal flows inside plugin graphs.")
    (home-page "https://open-music-kontrollers.ch/lv2/sherlock/")
    (license license:artistic2.0)))

(define-public foo-yc20
  (package
    (name "foo-yc20")
    (version "1.3.0")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/sampov2/foo-yc20/releases/download/"
                           version "/foo-yc20-" version ".tar.bz2"))
       (sha256
        (base32
         "1drzfyr7mzb58pdv0gsqkg6ds6kbgp6g25rrv1yya1611cljgvjh"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:make-flags
      #~(list (string-append "PREFIX=" #$output))
      #:tests? #f  ; no automated test
      #:phases
      '(modify-phases %standard-phases
         (replace 'configure
           (lambda _
             (substitute* "Makefile"
               (("-mtune=native") "")
               (("-march=native") "")))))))
    (inputs
     (list cairo
           gtk+-2
           jack-1
           lv2))
    (native-inputs
     (list faust pkg-config))
    (home-page "https://foo-yc20.codeforcode.com/")
    (synopsis "Implementation of Yamaha YC-20 combo organ from 1969")
    (description "This is a Faust implementation of a 1969 designed Yamaha
combo organ, the YC-20.  This package provides an LV2 plugin and a standalone
version.  Processing for the organ is based on original schematics and
measurements from a working specimen.  This instrument simulates the circutry
as a whole to realisticly reproduce the features and flaws of the real deal.")
    ;; Note that after 1.3.0 the license was changed.
    (license license:gpl3+)))

(define-public spectacle-analyzer
  (package
    (name "spectacle-analyzer")
    (version "1.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/jpcima/spectacle")
             (commit (string-append "v" version))
             ;; Bundles a specific commit of the DISTRHO plugin framework.
             (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0xiqa6z8g68lcvnwhws4j7c4py35r9d20cirrili7ycyp3a6149a"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no check target
       #:make-flags
       (list "CC=gcc"
             (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))
    (native-inputs
     (list pkg-config xxd))
    (inputs
     (list cairo
           fftw
           fftwf
           jack-1
           lv2
           mesa))
    (synopsis "Realtime graphical spectrum analyzer")
    (description "Spectacle is a real-time spectral analyzer using the
short-time Fourier transform, available as LV2 audio plugin and JACK client.")
    (home-page "https://github.com/jpcima/spectacle")
    ;; The project is licensed under the ISC license, and files in
    ;; sources/plugin carry the Expat license.
    (license (list license:isc license:expat))))

(define-public x42-plugins
  (package
    (name "x42-plugins")
    (version "20230701")
    (source
     (origin
       (method url-fetch)
       (uri
        (string-append "https://gareus.org/misc/x42-plugins/x42-plugins-"
                       version ".tar.xz"))
       (sha256
        (base32 "1why4mkaxbd0p7qr4jrx3d903wnw2l8gya8v3y32z2vjz31w7jqn"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                      ; no "check" target
      #:make-flags
      #~(list (string-append "PREFIX=" #$output)
              "LIBZITACONVOLVER=-lzita-convolver"
              (string-append "FONTFILE="
                             #$(this-package-native-input "font-dejavu")
                             "/share/fonts/truetype/DejaVuSans-Bold.ttf")
              (string-append "CC=" #$(cc-for-target)))
      #:phases
      #~(modify-phases %standard-phases
        (delete 'configure))))
    (inputs
     (list cairo
           fftwf
           ftgl
           glib
           glu
           hicolor-icon-theme
           jack-1
           libltc
           libsamplerate
           libx11
           pango
           zita-convolver))
    (native-inputs
     (list help2man liblo lv2 font-dejavu pkg-config))
    (synopsis "Collection of LV2/JACK audio/MIDI processing plugins")
    (description "x42-plugins is a collection of over 80 cross-platform LV2
audio and MIDI plugins that can also run as standalone JACK applications.")
    (home-page "https://x42-plugins.com/x42/")
    (license license:gpl2+)))

(define-public xuidesigner
  (package
    (name "xuidesigner")
    (version "0.9")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brummer10/XUiDesigner")
                    (commit (string-append "v" version))
                    ;; For libxputty
                    (recursive? #true)))
              (file-name (git-file-name name version))
              (sha256
               (base32 "1ap6g2j9lr4x9gpnavdhs4qa3z4dw100xgknpi6ysj0rmzc220mi"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                       ;no "check" target
      #:make-flags
      #~(list (string-append "PREFIX=" #$output)
              (string-append "CC=" #$(cc-for-target)))
      #:phases
      #~(modify-phases %standard-phases
          (delete 'configure))))
    (inputs
     (list cairo libx11 lilv))
    (native-inputs
     (list pkg-config which xxd))
    (home-page "https://github.com/brummer10/XUiDesigner")
    (synopsis "GUI generator tool to create X11 UIs for LV2 plugins")
    (description "XUiDesigner parses an LV2 plugin's ttl file and generates
the needed controller widgets.  The created GUI can be saved as UI-Bundle,
which then could be built and installed.  For later editing of the UI, a JSON
file is added, which you could load per drag 'n drop into XUiDesigner.")
    (license license:bsd-0)))

(define-public zam-plugins
  (package
    (name "zam-plugins")
    (version "4.1")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://github.com/zamaudio/zam-plugins")
         (commit version)
         ;; Recursive to fetch the DISTRHO plugin framework. This
         ;; framework is intended to be included in the sources
         ;; and not to be used as a library.
         (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0p3y3r2nrhzr0xlcy5rz4c2jsvc10l1n8cwc642r0zppwfabm9il"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                      ;no "check" target
      #:make-flags
      #~(list (string-append "PREFIX=" #$output)
              "HAVE_ZITA_CONVOLVER=true")
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'build 'set-CC-variable
            (lambda _
              (setenv "CC" "gcc")))
          (delete 'configure))))
    (inputs
     (list fftwf
           jack-1 ;for the standalone JACK application
           liblo
           libsamplerate
           mesa
           zita-convolver))
    (native-inputs
     (list ladspa lv2 pkg-config))
    (synopsis "Collection of audio processing plugins")
    (description
     "Zam plugins is a collection of audio processing plugins in the LADSPA,
LV2 and VST2 formats, as well as standalone JACK versions.  The collection
includes ZaMaximX2, ZamAutoSat, ZamComp, ZamCompX2, ZamEQ2, ZamGEQ31,
ZamHeadX2, ZamPhono, ZamGate, ZamGateX2, ZamTube, ZamDelay, ZamDynamicEQ,
ZaMultiComp, ZaMultiCompX2 and ZamSynth.")
    (home-page "https://www.zamaudio.com/?p=976")
    (license license:gpl2+)))

(define-public geonkick
  (package
    (name "geonkick")
    (version "2.7.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://gitlab.com/iurie-sw/geonkick")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0w1mvqm46qdwldcl81svaykwii4wvx7mcr57kwvnj0iv2qrc891i"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f                      ;no tests included
       #:configure-flags
       (list (string-append "-DGKICK_REDKITE_SDK_PATH="
                            (assoc-ref %build-inputs "redkite"))
             (string-append "-DCMAKE_INSTALL_PREFIX="
                            (assoc-ref %outputs "out")))))
    (inputs
     (list hicolor-icon-theme
           jack-1 ;for the standalone JACK application
           libsndfile
           libx11
           redkite
           rapidjson))
    (native-inputs
     (list lv2 pkg-config sord))
    (synopsis "Percussion synthesizer")
    (description "Geonkick is a synthesizer that can synthesize elements
of percussion such as kicks, snares, hit-hats, shakers, claps and sticks.
It can also play and mix samples.")
    (home-page "https://gitlab.com/iurie-sw/geonkick")
    (license license:gpl3+)))

(define-public mamba
  (package
   (name "mamba")
   (version "2.6")
   (source
    (origin
      (method git-fetch)
      (uri
       (git-reference
        (url "https://github.com/brummer10/Mamba")
        (commit (string-append "v" version))
        (recursive? #t))) ; references specific commit of libxputty
      (file-name (git-file-name name version))
      (sha256
       (base32
        "1dndyz3dza4k1a4abd53h9fr07ssmm5b7plbh4a74b3mf0dafpsb"))))
   (build-system gnu-build-system)
   (arguments
    (list #:tests? #f  ; no "check" target
          #:make-flags
          #~(list (string-append "PREFIX=" #$output)
                  (string-append "CC=" #$(cc-for-target)))
          #:phases
          #~(modify-phases %standard-phases
              (delete 'configure))))
   (inputs
    (list alsa-lib
          cairo
          fluidsynth
          jack-2
          liblo
          libsigc++-2
          libsmf
          libx11))
   (native-inputs
    (list pkg-config xxd))
   (home-page "https://github.com/brummer10/Mamba")
   (synopsis "Virtual MIDI keyboard and MIDI file player/recorder for JACK")
   (description "Mamba is a virtual MIDI keyboard and MIDI file
player/recorder for the JACK Audio Connection Kit.  It comes with predefined
keymaps for QWERTZ, QWERTY and AZERTY keyboards and also allows custom
ones.")
   (license license:bsd-0)))

(define-public distrho-ports
  ;; From 2021-03-15 to this commit various important changes are made
  ;; including improved directory structure and updated JUCE versions.
  (let ((commit "f2dbaded0a05732e3499fa374a586e5b32370da5")
        (revision "0"))
    (package
      (name "distrho-ports")
      (version (git-version "2021-03-15" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/DISTRHO/DISTRHO-Ports")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1rrnqwask2qg05ynisk6bpj118cl7c3w53rqrfg5x3sx847rjjgc"))
                (modules '((guix build utils)))
                (snippet
                 '(begin
                    ;; Delete third party libraries, libraries without
                    ;; licenses, and unneeded libraries.
                    (for-each
                     delete-file-recursively
                     (list "ports-juce5/arctican-function"         ;no license
                           "ports-juce5/arctican-pilgrim"          ;no license
                           "ports-juce5/drowaudio-tremolo"         ;no license
                           "ports-juce5/juce-demo-host"            ;not used
                           "ports-juce5/juce-demo-plugin"          ;not used
                           "ports-juce5/temper/source/faust"       ;bundled
                           "ports-juce6/chow"                      ;not used
                           "ports-juce6/swankyamp/thirdparty"      ;bundled
                           "ports-juce6/vitalium/third_party"))    ;bundled
                    ;; Exclude them from building.
                    (substitute* (find-files "." "meson.build$")
                      (("'arctican") "#'arctican")
                      (("'drowaudio-tremolo") "#'drowaudio-tremolo")
                      (("'third") "#'third"))
                    ;; Use system provided "nlohmann/json.hpp".
                    (with-directory-excursion "ports-juce6/vitalium/source"
                      (substitute*
                          (list "common/line_generator.h"
                                "common/load_save.h"
                                "common/tuning.h"
                                "common/wavetable/wavetable_component.h"
                                "common/wavetable/wavetable_creator.h"
                                "common/wavetable/wavetable_keyframe.h"
                                "interface/editor_sections/save_section.h"
                                "interface/look_and_feel/skin.h"
                                "synthesis/producers/sample_source.h")
                        (("json/json\\.h") "nlohmann/json.hpp")))))))
      (build-system meson-build-system)
      (arguments
       (list
        #:tests? #f                     ;no test target
        #:phases
        #~(modify-phases %standard-phases
            (add-after 'unpack 'patch-juce-fonts
              (lambda* (#:key inputs #:allow-other-keys)
                (let ((fonts (search-input-directory inputs "/etc/fonts")))
                  (with-directory-excursion "libs"
                    (substitute* (find-files "." "juce_linux_Fonts.cpp$")
                      (("/usr/share/fonts") fonts)))))))))
      (native-inputs
       (list cmake-minimal
             concurrentqueue
             faust
             nlohmann-json
             optional-lite
             pkg-config))
      (inputs
       (list alsa-lib
             fontconfig
             freetype
             fftwf
             libx11
             libxcursor
             libxext
             libxrender
             mesa))
      (native-search-paths
       (list (search-path-specification
              (variable "VST2_PATH")
              (files '("lib/vst")))
             (search-path-specification
              (variable "VST3_PATH")
              (files '("lib/vst3")))))
      (home-page "https://github.com/DISTRHO/DISTRHO-Ports")
      (synopsis "Audio plugins and LV2 ports")
      (description
       "This package contains LV2 ports of the following audio plugins:
@itemize
@item Dexed,
@item dRowAudio plugins (Distortion, Distortion Shaper, Flanger, Reverb,
  Tremolo),
@item DrumSynth,
@item EasySSP,
@item EQinox,
@item HiReSam,
@item JuceOPL,
@item KlangFalter,
@item LUFS Meter,
@item Luftikus,
@item Obxd,
@item PitchedDelay,
@item ReFine,
@item StereoSourceSeperation,
@item Swanky Amp,
@item TAL plugins (Dub-3, Filter, Filter-2, Noize Mak3r, Reverb, Reverb-II,
  Reverb-III, Vocoder-II),
@item Temper,
@item Vex,
@item Vitalium, and
@item Wolpertinger.
@end itemize")
      (license
       (list license:asl2.0             ;used by Dexed
             ;; mingw-std-threads and EasySSP (for dsp-utility) use FreeBSD.
             license:bsd-2
             ;; Licenses for dRowAudio is not found in this repository, but
             ;; the upstream project is licensed under MIT:
             ;; https://github.com/drowaudio/drowaudio.
             ;; Luftikus, PitchedDelay and ReFine are ported from lkjb plugins
             ;; which is licensed under MIT:
             ;; https://github.com/lkjbdsp/lkjb-plugins.
             license:expat
             (license:fsf-free          ;used by Temper
              "file:///ports-juce5/temper/source/TemperDsp.hpp")
             ;; juce-plugin, LUFS Meter, Obxd and TAL plugins use GPLv2.
             license:gpl2
             ;; License for Wolpertinger is not found in this repository, but
             ;; the upstream project is licensed under GPLv2+:
             ;; https://github.com/jkroll20/wolpertinger.
             ;; dRowAudio plugins, juced, HiReSam and Vex use this license.
             ;; Packages using files from JUCETICE project use this license.
             license:gpl2+
             ;; License for EasySSP is not found in this repository, but the
             ;; upstream project is licensed under GPLv3:
             ;; https://github.com/automatl/audio-dsp-multi-visualize.
             license:gpl3               ;used by JUCE
             ;; Dexed, Swanky Amp, Vitalium and KlangFalter use GPLv3+.
             license:gpl3+
             ;; License for lv2-ttl-generator is not found in this repository,
             ;; but is a part of DPF-Plugins and is licensed under ISC:
             ;; https://github.com/DISTRHO/DPF.
             ;; JUCE uses this license for juce_audio_basics,
             ;; juce_audio_devices, juce_blocks_basics, juce_core and
             ;; juce_events.
             license:isc
             license:lgpl2.0+           ;used by DrumSynth and EQinox
             license:lgpl2.1+           ;used by SoundTouch and juce-opl
             ;; StereoSourceSeperation uses a non-copyleft license.
             (license:non-copyleft
              "file:///ports-juce5/stereosourceseparation/\
source/kiss_fft/kiss_fft.c")
             ;; dRowAudio uses a non-copyleft license for curl.
             (license:non-copyleft
              "file:///libs/drowaudio/source/dRowAudio/network/\
curl/include/curl/curl.h")
             license:wtfpl2))))) ;used by dRowAudio for FFTReal

(define-public dpf-plugins
  (package
    (name "dpf-plugins")
    (version "1.7")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://github.com/DISTRHO/DPF-Plugins")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "082f3f78x6k58j78mqr57qhw40f5s8fmcbkhl36nn3vbcsa07bzg"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no "check" target
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "CC=" ,(cc-for-target)))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))
    (inputs
     (list cairo
           liblo ; for dssi plugins
           jack-1 ; for standalone applications
           mesa))
    (native-inputs
     (list pkg-config dssi lv2))
    (home-page "https://github.com/DISTRHO/DPF-Plugins")
    (synopsis "Audio plugin collection")
    (description "Collection of audio plugins built with the DISTRHO Plugin
Framework (DPF) available in LADSPA, DSSI, LV2 and VST2 formats.  This
package includes the following plugins: glBars, Kars, Max-Gen examples
(MaBitcrush, MaFreeverb, MaGigaverb, MaPitchshift), Mini-Series (3BandEQ,
3BandSplitter, PingPongPan), ndc-Plugs (Amplitude Imposer, Cycle Shifter,
Soul Force), MVerb, Nekobi, and ProM.")
    ;; This package consists of several plugins refactored to use the
    ;; DISTHRO Plugin Framework (DPF). Different copyrights and licenses
    ;; apply to different plugins. The root LICENSE file has a table with
    ;; license information for each plugin and paths to each license
    (license (list license:isc license:gpl3 license:lgpl3 license:expat license:gpl2))))

(define-public avldrums-lv2
  (package
    (name "avldrums-lv2")
    (version "0.4.2")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/x42/avldrums.lv2")
             (commit (string-append "v" version))
             ;; This plugin expects the robtk submodule's source files to be
             ;; there in order to build.
             (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "14gka5g7va30gm1hn0cas4vvb8s764rfvzcxm67ww86hf54cpnig"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no "check" target
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ; no configure script
         (add-before 'build 'set-CC-variable
           (lambda _
             (setenv "CC" "gcc"))))))
    (inputs
     (list cairo dssi glu mesa pango))
    (native-inputs
     (list pkg-config lv2))
    (home-page "https://x42-plugins.com/x42/x42-avldrums")
    (synopsis "Drum sample player LV2 plugin dedicated to the AVLinux Drumkits")
    (description "AVLdrums is a drum sample player LV2 plugin dedicated to Glen
MacArthur's AVLdrums.  This plugin provides a convenient way to sequence and mix
MIDI drums and comes as two separate drumkits: Black Pearl and Red Zeppelin.")
    (license license:gpl2+)))

(define-public helm
  (package
    (name "helm")
    (version "0.9.0")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://github.com/mtytel/helm")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "17ys2vvhncx9i3ydg3xwgz1d3gqv4yr5mqi7vr0i0ca6nad6x3d4"))
       ;; Apply GCC 9 fixes from https://github.com/mtytel/helm/pull/233
       (patches (search-patches "helm-fix-gcc-9-build.patch"))))
    (build-system gnu-build-system)
    (arguments
     (list
      #:tests? #f                       ; no "check" target
      #:make-flags
      #~(list (string-append "DESTDIR=" #$output) "lv2" "standalone")
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'include-pnglib-code-and-remove-usr-from-paths
            (lambda _
              (substitute* (list "standalone/builds/linux/Makefile"
                                 "builds/linux/LV2/Makefile")
                (("JUCE_INCLUDE_PNGLIB_CODE=0") "JUCE_INCLUDE_PNGLIB_CODE=1"))
              (substitute* "Makefile"
                (("/usr") ""))))
          (add-after 'unpack 'fix-hardcoded-paths
            (lambda _
              (substitute* (list "src/common/load_save.cpp"
                                 "src/editor_sections/patch_browser.cpp")
                (("/usr") #$output))))
          (delete 'configure))))
    (inputs
     (list alsa-lib
           curl
           freetype
           hicolor-icon-theme
           jack-1
           libxcursor
           libxinerama
           mesa))
    (native-inputs
     (list lv2 pkg-config))
    (home-page "https://tytel.org/helm/")
    (synopsis "Polyphonic synth with lots of modulation")
    (description "Helm is a cross-platform polyphonic synthesizer available standalone
and as an LV2 plugin.")
    (license license:gpl3+)))

(define-public zrythm
  (package
    ;; Zrythm contains trademarks and comes with a trademark policy found in
    ;; TRADMARKS.md inside the release distribution.  The trademark policy
    ;; allows verbatim re-distribution, and it also allows FSF-approved
    ;; distros to make necessary changes to integrate the software into the
    ;; distribution.
    (name "zrythm")
    (version "1.0.0-beta.4.12.5")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://www.zrythm.org/releases/zrythm-"
                           version ".tar.xz"))
       (sha256
        (base32
         "1kixf8rlim5qvkhcm65rf35mxkxv3hij039jc9rvh710vl2xxm0g"))))
    (build-system meson-build-system)
    (arguments
     (list
      #:glib-or-gtk? #t
      #:configure-flags
      '(list "-Dtests=true"
             "-Dmanpage=false"             ;fish-completions breaks this
             "-Ddseg_font=false"
             "-Dextra_optimizations=false" ;machine-specific
             "-Dgraphviz=enabled"          ;for exporting routing graphs
             "-Dguile=enabled"             ;for Guile scripting
             "-Djack=enabled"              ;for JACK audio/MIDI backend
             "-Drtaudio=enabled"           ;for RtAudio backend (ALSA)
             "-Drtmidi=enabled"            ;for RtMidi backend (ALSA sequencer)
             "-Dsdl=enabled")              ;for SDL audio backend (which uses ALSA)
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-tests
            (lambda _
              ;; zrythm: fails because curl wants to access the internet.
              ;; project: unknown failure XXX
              ;; The other tests fail with this error:
              ;;     error: attempt to map invalid URI `'
              ;; This means that lilv is given an empty LV2 plugin URI.
              ;; This is probably because we don't provide all LV2
              ;; plugins that are needed for running the tests.
              (substitute* "tests/meson.build"
                (("foreach name, info : tests")
                 "\
  disabled_tests = {
    'actions/mixer_selections_action': 0,
    'actions/tracklist_selections': 0,
    'dsp/audio_region': 0,
    'dsp/audio_track': 0,
    'dsp/midi_track': 0,
    'dsp/pool': 0,
    'integration/recording': 0,
    'project': 0,
    'zrythm': 0
  }
  enabled_tests = {}
  foreach name, info : tests
    if name not in disabled_tests
      enabled_tests += {name: info}
    endif
  endforeach
  foreach name, info : enabled_tests"))
              ;; Requires internet access
              (substitute* "data/meson.build"
                (("if appstream.*\\(\\)")
                 "if false"))))
          (add-before 'build 'disable-guile-auto-compilation
            (lambda _
              (setenv "GUILE_AUTO_COMPILE" "0")))
          (add-after 'install 'wrap-program
            (lambda _
              (wrap-program (string-append #$output "/bin/zrythm")
                ;; Wrapping GDK_PIXBUF_MODULE_FILE allows Zrythm to load
                ;; its own SVG icons in pure environments.
                `("GDK_PIXBUF_MODULE_FILE" =
                  (,(getenv "GDK_PIXBUF_MODULE_FILE")))))))))
    (inputs
     (list alsa-lib
           boost
           carla-2.6
           curl
           fftw
           fftwf
           flex
           font-dseg
           gettext-minimal
           glib
           graphviz
           gtk
           gtksourceview
           guile-3.0
           jack-2
           json-glib
           libadwaita
           (module-ref
            (resolve-interface '(gnu packages debug)) 'libbacktrace)
           libcyaml
           libpanel
           (librsvg-for-system)
           libsamplerate
           libsndfile
           libyaml
           lilv
           lsp-dsp-lib
           lv2
           pango
           pcre
           pipewire
           pulseaudio
           reproc
           rtaudio
           rtmidi
           rubberband
           sdl2
           soxr
           vamp
           xdg-utils
           xxhash
           zix
           `(,zstd "lib")))
    (native-inputs
     ;; Zrythm require breeze-icons to be installed.  Having them listed in
     ;; the native inputs cause them to be wrapped and made available via
     ;; XDG_DATA_DIRS.
     (list breeze-icons                 ;native because not executable
           help2man
           `(,glib "bin")               ;for 'glib-compile-resources'
           pkg-config
           python-sphinx
           python-sphinx-intl
           sassc))
    (synopsis "Digital audio workstation focusing on usability")
    (description "Zrythm is a digital audio workstation designed to be
featureful and easy to use.  It offers unlimited automation options, LV2
plugin support, JACK support and chord assistance.")
    (home-page "https://www.zrythm.org/en/index.html")
    (license license:agpl3+)))

(define-public dragonfly-reverb
  (package
    (name "dragonfly-reverb")
    (version "3.2.10")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://github.com/michaelwillis/dragonfly-reverb")
         (commit version)
         ;; Bundles a specific commit of the DISTRHO plugin framework.
         (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "11i2k888m3zj4gz9si4y5mach8dwdq3yksbvjn1syrbwj99phwk1"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no check target
       #:make-flags
       (list (string-append "CC=" ,(cc-for-target)))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ;no configure target
         (replace 'install              ;no install target
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bin (string-append out "/bin"))
                    (lv2 (string-append out "/lib/lv2")))
               ;; Install LV2.
               (for-each
                (lambda (file)
                  (copy-recursively file
                                    (string-append lv2 "/" (basename file))))
                (find-files "bin" "\\.lv2$" #:directories? #t))
               ;; Install executables.
               (for-each
                 (lambda (file)
                   (install-file file bin))
                 (find-files "bin"
                             (lambda (name stat)
                               (and
                                 (equal? (dirname name) "bin")
                                 (not (string-suffix? ".so" name))
                                 (not (string-suffix? ".lv2" name))))))))))))
    (native-inputs
     (list pkg-config))
    (inputs
     (list jack-1 libx11 mesa))
    (home-page "https://michaelwillis.github.io/dragonfly-reverb/")
    (synopsis "Concert hall reverb and room reverb effects")
    (description
     "Dragonfly Reverb is a bundle of two free audio effects: a concert
hall reverb and a room reverb.  Both are available as LV2 plugins as well
as JACK standalone applications.")
    (license license:gpl3+)))

(define-public zplugins
  (package
    (name "zplugins")
    (version "0.2.5")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url "https://git.zrythm.org/zrythm/zplugins")
         (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0xsnq8kg57pdswqi9yy5nrpjbfgmym2m1qi3cj3hki33kwzx2nn1"))))
    (build-system meson-build-system)
    (inputs
      (list guile-3.0 libsndfile lv2 ztoolkit-rsvg))
    (native-inputs
      (list pkg-config))
    (synopsis "Audio plugin collection")
    (description "ZPlugins is a collection of audio DSP plugins intended
to be bundled with the Zrythm @dfn{digital audio workstation} (DAW).")
    (home-page "https://www.zrythm.org/en/plugins.html")
    (license license:agpl3+)))

(define-public remid-lv2
  (package
    (name "remid-lv2")
    (version "0.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/ssj71/reMID.lv2")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "062kriniidsrhzwrf89kfxm9wb0cmgrl07asnlmgil8vcl7gl9y5"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f))                    ; no tests included
    (inputs
     (list alsa-lib glib jack-1 lv2))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/ssj71/reMID.lv2")
    (synopsis
     "MIDI-controlled implementation of the SID 6581 chip used in the
Commodore 64")
    (description
     "The 6581 SID chip is the sound chip used in the Commodore 64 computer.
reMID is a MIDI implementation of the 6581 SID chip using the reSID library
to provide a virtual SID-based synthesizer, controllable in real-time via
MIDI.  It includes support for scripted instruments that allow complex sonic
control of the chip.")
    (license license:gpl2+)))

(define-public vl1-emulator
  (package
    (name "vl1-emulator")
    (version "1.1.0.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/linuxmao-org/VL1-emulator")
             (commit (string-append "v" version))
             ;; bundles a specific commit of the DISTRHO plugin framework
             (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1npc86vqma8gk1hawa0lii0r2xmnv846plyl1ci3bdswyrdk5chm"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ;no check target
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             "CC=gcc")
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))         ;no configure target
    (inputs
     (list cairo jack-1 mesa))
    (native-inputs
     (list pkg-config))
    (home-page "https://github.com/linuxmao-org/VL1-emulator")
    (synopsis "Emulator of Casio VL-Tone VL1")
    (description "The VL1-Emulator is an emulator of Casio VL-Tone VL1,
based on source code by PolyValens, offered as an LV2 plugin and a
standalone JACK application.")
    ;; Expat or CC0
    (license (list license:expat license:cc0))))

(define-public regrader
  (package
    (inherit vl1-emulator)
    (name "regrader")
    (version "1.0.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/linuxmao-org/regrader")
             (commit (string-append "v" version))
             ;; bundles a specific commit of the DISTRHO plugin framework
             (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0gl4d5lf2afqknz22jz7hh7029sc9v1xrz6nbz9dlv42bwc0cvl0"))))
    (home-page "https://github.com/linuxmao-org/regrader")
    (synopsis "Delay effect plugin")
    (description
     "Regrader is a delay effect where the repeats degrade in resolution.
This is an unofficial port of the Regrader plugin created by Igorski.  It
is available as an LV2 plugin and a standalone JACK application.")
    (license license:expat)))

(define-public fogpad
  (package
    (inherit vl1-emulator)
    (name "fogpad")
    (version "1.0.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/linuxmao-org/fogpad")
             (commit (string-append "v" version))
             ;; bundles a specific commit of the DISTRHO plugin framework
             (recursive? #t)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1j1hbya2dsqpf22zkpi4kwz3dram9g1ndxzmgfwpmf3i4jd3csgb"))))
    (home-page "https://github.com/linuxmao-org/fogpad")
    (synopsis "Reverb effect plugin")
    (description
     "Fogpad is a reverb effect in which the reflections can be frozen,
filtered, pitch shifted and ultimately disintegrated.  This is an unofficial
port of the Regrader plugin created by Igorski.  It is available as an LV2
plugin and a standalone JACK application.")
    (license license:expat)))

(define-public tap-lv2
  (let ((commit "cab6e0dfb2ce20e4ad34b067d1281ec0b193598a")
        (revision "1"))
    (package
      (name "tap-lv2")
      (version (git-version "0.0" revision commit))
      (source
        (origin
          (method git-fetch)
          (uri (git-reference
                 (url "https://github.com/moddevices/tap-lv2")
                 (commit commit)))
          (file-name (git-file-name name version))
          (sha256
            (base32
              "0q480djfqd9g8mzrggc4vl7yclrhdjqx563ghs8mvi2qq8liycw3"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f                      ; no check target
         #:make-flags
         (list "CC=gcc")
         #:phases
         (modify-phases %standard-phases
           (delete 'configure) ; no configure
           (replace 'install
             (lambda _
               (invoke "make"
               (string-append "INSTALL_PATH="
                              (assoc-ref %outputs "out")
                              "/lib/lv2")
                       "install"))))))
      (inputs
        (list lv2))
      (native-inputs
        (list pkg-config))
      (synopsis "Audio plugin collection")
      (description "TAP (Tom's Audio Processing) plugins is a collection of
  audio effect plugins originally released as LADSPA plugins.  This package
  offers an LV2 version ported by moddevices.")
      (home-page "https://tap-plugins.sourceforge.net/")
      (license license:gpl2))))

(define-public wolf-shaper
  (package
    (name "wolf-shaper")
    (version "0.1.8")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/pdesaulniers/wolf-shaper")
               (commit (string-append "v" version))
               ;; Bundles a specific commit of the DISTRHO plugin framework.
               (recursive? #t)))
        (file-name (git-file-name name version))
        (sha256
          (base32
            "1j9xmh1nkf45ay1c5dz2g165qvrwlanzcq6mvb3nfxar265drd9q"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no check target
       #:make-flags (list "CC=gcc"
                          "NOOPT=true")
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ;no configure target
         (replace 'install              ;no install target
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bin (string-append out "/bin"))
                    (lv2 (string-append out "/lib/lv2")))
               ;; Install LV2.
               (for-each
                (lambda (file)
                  (copy-recursively file
                                    (string-append lv2 "/" (basename file))))
                (find-files "bin" "\\.lv2$" #:directories? #t))
               ;; Install executables.
               (for-each
                 (lambda (file)
                   (install-file file bin))
                 (find-files "bin"
                             (lambda (name stat)
                               (and
                                 (equal? (dirname name) "bin")
                                 (not (string-suffix? ".so" name))
                                 (not (string-suffix? ".lv2" name))))))
               #t))))))
    (native-inputs
     (list pkg-config))
    (inputs
      (list jack-1 lv2 mesa))
    (synopsis "Waveshaper plugin")
    (description "Wolf Shaper is a waveshaper plugin with a graph editor.
It is provided as an LV2 plugin and as a standalone Jack application.")
    (home-page "https://pdesaulniers.github.io/wolf-shaper/")
    (properties `((tunable? . #t)))
    (license license:gpl3)))

(define-public wolf-spectrum
  (package
    (inherit wolf-shaper)
    (name "wolf-spectrum")
    (version "1.0.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/pdesaulniers/wolf-spectrum")
               (commit (string-append "v" version))
               ;; Bundles a specific commit of the DISTRHO plugin framework.
               (recursive? #t)))
        (file-name (git-file-name name version))
        (sha256
          (base32
            "17db1jlj7vb1xyvkdhhrsvdbwb7jqw6i4168cdvlj3yvn2ra8gpm"))))
    (synopsis "2D spectrogram plugin")
    (description "Wolf Spectrum is a real-time 2D spectrogram plugin.
It is provided as an LV2 plugin and as a standalone Jack application.")
    (home-page "https://github.com/pdesaulniers/wolf-spectrum")
    (license license:gpl3)))

(define-public shiru-lv2
  (let ((commit "08853f99140012234649e67e5647906fda74f6cc")
        (revision "1"))
    (package
      (name "shiru-lv2")
      (version (git-version "0.0" revision commit))
      (source
        (origin
          (method git-fetch)
          (uri (git-reference
                 (url "https://github.com/linuxmao-org/shiru-plugins")
                 (commit commit)
                 ;; Bundles a specific commit of the DISTRHO plugin framework.
                 (recursive? #t)))
          (file-name (git-file-name name version))
          (sha256
            (base32
              "00rf6im3rhg98h60sgl1r2s37za5vr5h14pybwi07h8zbc8mi6fm"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f                      ; no check target
         #:make-flags (list "CC=gcc")
         #:phases
         (modify-phases %standard-phases
           (delete 'configure)            ;no configure target
           (replace 'install              ;no install target
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
                      (bin (string-append out "/bin"))
                      (lv2 (string-append out "/lib/lv2")))
                 ;; Install LV2.
                 (for-each
                  (lambda (file)
                    (copy-recursively file
                                      (string-append lv2 "/" (basename file))))
                  (find-files "bin" "\\.lv2$" #:directories? #t))
                 ;; Install executables.
                 (for-each
                   (lambda (file)
                     (install-file file bin))
                   (find-files "bin"
                               (lambda (name stat)
                                 (and
                                   (equal? (dirname name) "bin")
                                   (not (string-suffix? ".so" name))
                                   (not (string-suffix? ".lv2" name))))))
                 #t))))))
      (native-inputs
       (list pkg-config))
      (inputs
        (list cairo
              glu
              jack-1
              lv2
              mesa
              pango))
      (synopsis "Audio plugin collection")
      (description "Shiru plugins is a collection of audio plugins created
  by Shiru, ported to LV2 by the Linux MAO project using the DISTRHO plugin
  framework.")
      (home-page "https://shiru.untergrund.net/software.shtml")
      (license license:wtfpl2))))

(define-public a2jmidid
  (package
    (name "a2jmidid")
    (version "9")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/jackaudio/a2jmidid")
                    (commit version)))
              (modules '((guix build utils)))
              (snippet
               ;; Fix build for for riscv64-linux, same as:
               ;;   https://github.com/jackaudio/a2jmidid/pull/18
               '(substitute* "sigsegv.c"
                  (("!defined[(]__aarch64__[)]")
                   "!defined(__arch64__) && !defined(__riscv)")))
              (sha256
               (base32 "1x6rcl3f4nklnx4p5jln9a7fpj9y7agjxs9rw7cccmwnski7pnsq"))
              (file-name (git-file-name name version))))
    (arguments
     (list #:tests? #f      ; No tests.
           #:phases
           #~(modify-phases %standard-phases
               (add-after 'install 'wrap-programs
                 (lambda* (#:key inputs outputs #:allow-other-keys)
                   (let ((bin (string-append #$output "/bin/")))
                     (substitute* (string-append bin "a2j")
                       (("a2j_control") (string-append bin "a2j_control")))
                     (wrap-program (string-append bin "a2j_control")
                       `("PYTHONPATH" prefix (,(getenv "GUIX_PYTHONPATH"))))))))))
    (build-system meson-build-system)
    (inputs
     (list alsa-lib
           bash-minimal ; for wrap-program
           dbus
           jack-1
           python
           python-dbus))
    (native-inputs
     (list pkg-config))
    (synopsis "ALSA sequencer to JACK MIDI bridging")
    (description
     "@code{a2jmidid} is a daemon that implements automatic bridging of ALSA
midi devices to JACK midi devices.")
    (home-page "https://github.com/jackaudio/a2jmidid")
    (license license:gpl2)))

(define-public opustags
  (package
    (name "opustags")
    (version "1.9.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/fmang/opustags")
                    (commit version)))
              (sha256
               (base32 "1f1bj0ng89plivdwpjc8qkfy8nn1kw5gqnbc74scigz7mw9z443i"))
              (file-name (git-file-name name version))))
    (arguments
     (list
       #:test-target "check"
       #:phases
       #~(modify-phases %standard-phases
         ;; This package does not use the perl-build-system, so we have to
         ;; manually set up the Perl environment used by the test suite.
         (add-before 'check 'setup-perl-environment
           (lambda* (#:key inputs #:allow-other-keys)
             (let* ((perl-list-moreutils-lib
                      (string-append #$(this-package-native-input "perl-list-moreutils")
                                     "/lib/perl5/site_perl/"
                                     #$(package-version perl)))
                    (perl-exporter-tiny-lib
                      (string-append #$(this-package-native-input "perl-exporter-tiny")
                                     "/lib/perl5/site_perl/"
                                     #$(package-version perl)))
                    (perl-test-deep-lib
                      (string-append #$(this-package-native-input "perl-test-deep")
                                     "/lib/perl5/site_perl/"
                                     #$(package-version perl))))
               (setenv "PERL5LIB" (string-append perl-list-moreutils-lib ":"
                                                 perl-exporter-tiny-lib ":"
                                                 perl-test-deep-lib))))))))
    (build-system cmake-build-system)
    (inputs
      (list libogg))
    (native-inputs
      (list pkg-config
            ffmpeg
            perl-exporter-tiny
            perl-list-moreutils
            perl-test-deep
            perl-test-harness))
    (synopsis "Ogg Opus tags editor")
    (description "@code{opustags} is an Ogg Opus tag editor.  It reads and edits
the comment header of an Ogg Opus audio file, offering both read-only and
editing modes.  Tags can be edited interactively with an editor of your
choice.")
    (home-page "https://github.com/fmang/opustags")
    (license license:bsd-3)))

(define-public musikcube
  (package
    (name "musikcube")
    (version "3.0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                     (url "https://github.com/clangen/musikcube/")
                     (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "09q15xlssgg67zg5m0q574k3al2pdjdnm1580mlf0wzr6a021fnd"))))
    (build-system cmake-build-system)
    (arguments
     '(#:tests? #f ; No test suite
       #:configure-flags
       '("-DCMAKE_BUILD_TYPE=Release"
         ;; Use the "wide" ncurses headers but don't look for them in an
         ;; ncursesw directory. For more info:
         ;; https://github.com/clangen/musikcube/wiki/building#compiler-cannot-find-ncurseswcursesh
         "-DNO_NCURSESW=true"
         ;; We will strip the binaries ourselves in the 'strip' phase.
         "-DDISABLE_STRIP=true")))
    (native-inputs
     (list asio pkg-config))
    (inputs
     (list alsa-lib
           boost
           curl
           ffmpeg-4
           lame
           libev
           libgme
           libmicrohttpd
           libogg
           libopenmpt
           libvorbis
           ncurses/tinfo
           openssl
           pipewire
           pulseaudio
           taglib
           zlib))
    (synopsis "Terminal-based music player, library, and streaming audio server")
    (description "Musikcube is a terminal-based music player, library, and
streaming audio server.")
    (home-page "https://musikcube.com/")
    (license license:bsd-3)))

(define-public quodlibet
  (package
    (name "quodlibet")
    (version "4.5.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/quodlibet/quodlibet")
             (commit (string-append "release-" version))))
       (file-name (git-file-name name version))
       (patches (search-patches "quodlibet-fix-invalid-glob.patch"
                                "quodlibet-fix-mtime-tests.patch"))
       (sha256
        (base32 "1i5k93k3bfp7hpcwkbr865mbj9jam3jv2a5k1bazcyp4f5vdrb0v"))))
    (build-system python-build-system)
    (arguments
     (list
      #:modules '((guix build python-build-system)
                  ((guix build glib-or-gtk-build-system) #:prefix glib-or-gtk:)
                  (guix build utils))
      #:imported-modules `((guix build python-build-system)
                           ,@%glib-or-gtk-build-system-modules)
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'check 'pre-check
            (lambda _
              (setenv "HOME" (getcwd))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (if tests?
                  (invoke "xvfb-run" "pytest"
                          ;; needs network
                          "--ignore=tests/test_browsers_iradio.py"
                          ;; broken upstream
                          "--disable-warnings"
                          "--ignore=tests/quality/test_flake8.py")
                  (format #t "test suite not run~%"))))
          (add-after 'install 'glib-or-gtk-wrap ; ensure icons loaded
            (assoc-ref glib-or-gtk:%standard-phases 'glib-or-gtk-wrap))
          (add-after 'install 'wrap-extra-paths
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
                    (gi-typelib-path (getenv "GI_TYPELIB_PATH"))
                    (gst-plugins-path (getenv "GST_PLUGIN_SYSTEM_PATH")))
                (for-each
                 (lambda (prog)
                   (wrap-program (string-append out "/bin/" prog)
                     `("GI_TYPELIB_PATH" ":" = (,gi-typelib-path))
                     `("GST_PLUGIN_SYSTEM_PATH" ":" suffix (,gst-plugins-path))))
                 '("exfalso" "quodlibet"))))))))
    (native-inputs (list xvfb-run gettext-minimal))
    (inputs
     (list adwaita-icon-theme
           bash-minimal
           glib
           gsettings-desktop-schemas
           gst-plugins-bad
           gst-plugins-base
           gst-plugins-good
           gst-plugins-ugly
           gstreamer
           gtk+
           gtksourceview-4 ; undo, redo, multiline text fields
           hicolor-icon-theme
           keybinder-3.0 ; keybindings outside of GNOME
           (librsvg-for-system)
           libsoup-minimal-2
           python
           python-cheetah
           python-dbus
           python-feedparser
           python-gst
           python-iniconfig
           python-musicbrainzngs
           python-mutagen
           python-pycairo
           python-pygobject
           python-pyinotify
           python-pytest
           python-sgmllib3k
           python-toml))
    (home-page "https://github.com/quodlibet/quodlibet")
    (synopsis "Music manager and player")
    (description "Quod Libet provides several ways to browse and view your
local music library, along with flexible search capabilities.  It includes
a tag editor, which can also be invoked as a standalone program, and further
supports streaming audio and feeds (such as podcasts).")
    (license license:gpl2+)))

(define-public orca-music
  (let ((commit "e55b8fdc3606341345938d5b24b2d9d9326afdb5") (revision "1"))
    (package
      (name "orca-music")
      ;; No upstream version numbers; Using commit instead.
      (version (git-version "0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://git.sr.ht/~rabbits/orca")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0xf5i9vd2wyrhvfp68j5gvd40iqm9rf6g1p74jan7d875g6kpppq"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f
         #:phases
         (modify-phases %standard-phases
           (delete 'configure) ;No autoconf
           (replace 'build
             (lambda* (#:key inputs outputs #:allow-other-keys)
               (setenv "CC"
                       ,(cc-for-target))
               (invoke "make" "release")))
           (add-after 'build 'rename-orca
             (lambda* _
               (invoke "mv" "-v" "./build/orca" "./build/orca-music")))
           (replace 'install
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out")) (dest-bin (string-append
                                                                 out "/bin"))
                      (share (string-append out "/share"))
                      (dest-examples (string-append share "/examples"))
                      (dest-doc (string-append share "/doc")))
                 (install-file "./build/orca-music" dest-bin)
                 (copy-recursively "./examples" dest-examples)
                 (install-file "./README.md" dest-doc)))))))
      (inputs (list ncurses portmidi alsa-plugins
                    `(,alsa-plugins "pulseaudio")))
      (native-inputs (list pkg-config))
      (native-search-paths
       (list (search-path-specification
              (variable "TERMINFO_DIRS")
              (files '("share/terminfo")))))
      (synopsis "Musical live-coding environment")
      (description
       "This is the C implementation of the ORCΛ language and terminal
livecoding environment.  It's designed to be power efficient.  It can handle
large files, even if your terminal is small.

Orca is not a synthesizer, but a flexible livecoding environment capable of
sending MIDI, OSC, and UDP to your audio/visual interfaces like Ableton,
Renoise, VCV Rack, or SuperCollider.")
      (home-page "https://100r.co/site/orca.html")
      (license license:expat))))

(define-public samplebrain
  (package
    (name "samplebrain")
    (version "0.18.5")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://gitlab.com/then-try-this/samplebrain")
                    (commit (string-append "v" version "_release"))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "17p6n16x89bbzlpn9r7w1lgr1ifxs45npn8gxymkdr3j16dhg4zy"))))
    (build-system qt-build-system)
    (arguments
     (list #:tests? #f ;no tests
           #:phases #~(modify-phases %standard-phases
                        (replace 'configure
                          (lambda _
                            (substitute* "samplebrain.pro"
                              (("\\/usr")
                               #$output))
                            (invoke "qmake"))))))
    (inputs (list fftw liblo libsndfile portaudio))
    (home-page "https://thentrythis.org/projects/samplebrain/")
    (synopsis "Sample mashing synthesizer designed by Aphex Twin")
    (description
     "Samplebrain chops samples up into a 'brain' of
interconnected small sections called blocks which are connected into a network
by similarity.  It processes a target sample, chopping it up into blocks in
the same way, and tries to match each block with one in its brain to play in
realtime.")
    (license license:gpl2+)))

(define-public le-biniou-data
  (package
    (name "le-biniou-data")
    (version "3.66.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://gitlab.com/lebiniou/lebiniou-data")
                    (commit (string-append "version-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1s8dax6ryfqz7aqq8rj5ipxddshp5mjdvj0mn9kk1zzr55hvkfb7"))))
    (build-system gnu-build-system)
    (native-inputs (list autoconf automake libtool))
    (home-page "https://biniou.net/")
    (synopsis "Data files for use with Le Biniou")
    (description
     "This package contains data files for use with Le Biniou.")
    (license license:gpl2+)))

(define-public le-biniou
  (package
    (name "le-biniou")
    (version "3.66.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://gitlab.com/lebiniou/lebiniou")
                    (commit (string-append "version-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1fvf944i703yd17kkxgja2xyyznb30p006piclz1rmgkhijp0lcp"))))
    (build-system gnu-build-system)
    (arguments
     (list #:configure-flags #~(list (string-append "LDFLAGS=-Wl,-rpath="
                                                    #$output "/lib")
                                     (string-append
                                      "LEBINIOU_DATADIR="
                                      #$(this-package-input "le-biniou-data")))
           #:phases #~(modify-phases %standard-phases
                        (add-after 'unpack 'patch
                          (lambda _
                            (substitute* "src/bulfius_vui.c"
                              (("xdg-open")
                               (string-append
                                #$(this-package-input "xdg-utils")
                                "/bin/xdg-open"))))))))
    (native-inputs (list autoconf
                         automake
                         libtool
                         perl ;for pod2man
                         pkg-config))
    (inputs (list alsa-lib
                  curl
                  ffmpeg
                  fftw
                  glib
                  imagemagick
                  jack-1
                  jansson
                  le-biniou-data
                  libcaca
                  libsndfile
                  pulseaudio
                  sdl2
                  ulfius
                  xdg-utils))
    (home-page "https://biniou.net/")
    (synopsis "Audio visualization and VJing tool")
    (description
     "Le Biniou is a music visualization & VJing tool.  It creates live
visuals based on audio performances or existing tracks.")
    (license license:gpl2+)))

;;;
;;; Avoid adding new packages to the end of this file. To reduce the chances
;;; of a merge conflict, place them above by existing packages with similar
;;; functionality or similar names.
;;;

debug log:

solving 0e0d61c09c ...
found 0e0d61c09c in https://yhetil.org/guix-patches/cf50283faf670691d022b513659cedfc8471e690.1731860906.git.sughosha@disroot.org/
found 980bce6b30 in https://git.savannah.gnu.org/cgit/guix.git
preparing index
index prepared:
100644 980bce6b30fae1e9941a827c8eef83cb2577be88	gnu/packages/music.scm

applying [1/1] https://yhetil.org/guix-patches/cf50283faf670691d022b513659cedfc8471e690.1731860906.git.sughosha@disroot.org/
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 980bce6b30..0e0d61c09c 100644

Checking patch gnu/packages/music.scm...
Applied patch gnu/packages/music.scm cleanly.

index at:
100644 0e0d61c09c79e4c7b0f6e019a7ed87bb22ad788d	gnu/packages/music.scm

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

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