On Fri, Jun 20, 2014 at 6:12 AM, David Kastrup <d...@gnu.org> wrote: > Urs Liska <u...@openlilylib.org> writes: > > > how could I determine if at any given point in time there is another > > event in another voice or not. Concretely: If I have a certain rest, > > can I know if another rest of the same length is in another voice? > > Put an engraver in the enclosing Staff context which listens to rest > events. That does not help with actually reducing the number of rests: > for that you need to have an acknowledger for those rest grobs and > possibly kill one of the grobs manually. > > There's already an engraver on the lists which should help. The thread begins here: http://www.mail-archive.com/lilypond-user%40gnu.org/msg69608.html
HTH, David
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