Jan already explained the reason for your problem.
Joerg Anders wrote:
> bcc = {
> \property Voice.NoteHead \set #'style = #'xcircle
> }
> btr = {
> \property Voice.NoteHead \set #'style = #'triangle
> }
...
> < \bcc b \btr as' >
That won't work. You cannot in the same context have different styles
simultainously. You need to put the different notehead styles in
different threads:
bcc = {
\context Thread = xcircle
\property Thread.NoteHead \set #'style = #'xcircle
}
... etc.
Btw, I think that you should use the drum-notation-scheme demonstrated
in input/test/drums.ly
I am working on a "real" implementation - hopefully for 1.6, otherwise
later - but the notes themselves should be downwards compatible so the
changes needed to upgrade to the new system will be small and easy.
-Rune
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