(doc help) applyMusic -> music functions

[Graham Percival]

I'm looking for a volunteer to do a small (although somewhat advanced) 
documentation project.  This involves writing music functions.  The 
chapter on music functions has just been almost totally rewritten, so 
it should be music easier to understand.  This project would be a good 
exercise to help you learn this materal.  :)

Anyway, we're phasing out \applyMusic in favor of 
#(define-music-function).  The following six files (from the "tips and 
tricks" document) need to be rewritten to use music functions.
input/test/add-staccato.ly
input/test/add-text-script.ly
input/test/music-box.ly
input/test/reverse-music.ly
input/test/smart-transpose.ly
input/test/unfold-all-repeats.ly

The amount of time depends on how well you understand music functions; 
I personally would approach this as a way to learn more about advanced 
lilypond tweaks, rather than a documentation chore.  Depending on how 
quickly you learn, I estimate that this project would take between 1 
and 3 hours.

Cheers,
- Graham Percival, LilyPond Documentation Editor