On Wed, Jan 20, 2010 at 6:11 AM, David Kastrup <d...@gnu.org> wrote: >>>>> StdbassEngraver = #`((listeners >>>>> (note-event . >>>>> ,(lambda (engraver event) >>>>> (let* ((pitch (ly:event-property event 'pitch))) >>>>> (ly:event-set-property! event 'pitch >>>> >>>> This looks wrong - engravers should not modify their inputs. Rather, >>>> the engraver should create the Grob that you are interested in, or it >>>> should acknowledge the grob created by another engraver. >>> >>> Obviously, I have no clue whatsoever about what I am doing, and this is >>> the "poke with a stick until it works(TM)" approach. >>> >>> Could you give a code example or outline for either of the possibilities >>> that you outlined? >> >> I am completely unsure what you are trying to achieve. Are you really >> trying to typeset noteheads on a staff, or is it something else? > > I am trying to do exactly what the posted code _does_ right now. It > works (maps notes to different octaves than entered, in particular > mapping chord notes to the -1 octave ignoring inversions). At a future > point of time, the criteria might get more intricate and I may want to > analyze the resulting chords. But that is reasonably straightforward to > do.
I recommend a music function for this. -- Han-Wen Nienhuys - han...@xs4all.nl - http://www.xs4all.nl/~hanwen _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
