many different computer languages. Emacs is a highly extensible
editor and can be used as an Integrated Development Environment.
There is a @q{lilypond mode} which supplies the language
-definitions for working with LilyPond source files. As well, one of
-our developers has written
-@uref{http://nicolas.sceaux.free.fr/lilypond/lyqi.html,lyqi}, an
-Emacs major mode.
+definitions for working with LilyPond source files. A developer
+has written @uref{https://github.com/nsceaux/lyqi,lyqi}, an Emacs major
+mode.
@uref{http://www.vim.org}