changing from \cite{1} to \cite{MacRae,2002}

[Sharon Kimble <boudiccas@skimble.plus.com>]

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I am using latex and working on a document all in emacs. I have been
using the biblatex citation system with the style "numerical", but
now want to use "authoryear".
At present -
╭────
│\usepackage[backend=biber,style=verbose,style=number]{biblatex}
╰────

What I want to use -
╭────
│\usepackage[backend=biber,style=verbose,style=authoryear]{biblatex}
╰────

And it appears in the bibtex database as
--8<---------------cut here---------------start------------->8---
@Article{1,
  author = {MacRae K. Pattison J.},
  title = {Home chemotherapy.},
  journaltitle = {Nursing Times},
  year = {2002},
  key = {1},
  volume = {98},
  number = {35},
  pages = {34-35},
}
--8<---------------cut here---------------end--------------->8---

In the document it shows as
╭────
│ as a means of changing themselves \cite{1}
╰────

What I want to do is to end up with a citation like
╭────
│ as a means of changing themselves \cite{MacRae,2002}
╰────

How can I do it programmatically please? I.E. from the command-line?
I have 26 entries in my bibtex database so I want to do it before
it gets too big and unmanageable.

Thanks
Sharon.
-- 
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