Programming questions

[Jay Anderson]

A couple of weeks ago I recall reading about someone trying to get
midi trills working. The key needed to be understood so that it could
figure out the correct note to trill to. I can't find the thread to
see if it was resolved. Are there some functions out there for doing
this?


In a few functions I've written they either work correctly inside a
\relative section or correctly outside but not both. Is there a
standard way to make them work in both? When I compile this:
> \displayMusic \relative c' {c c' c,, c'}
> \displayMusic {c' c'' c c'}
both sections display essentially the same contents, but when
manipulating the notes programaticly the pitch octaves need to be
handled differently. I understand why because this:
> \relative c' \displayMusic {c c' c,, c'}
prints the inner section as if it were not relative.

Here (http://article.gmane.org/gmane.comp.gnu.lilypond.general/36789)
is an example designed to work only within a relative section. How
would something like this work both inside and outside a relative
section?

Thanks!

-----Jay