\version "2.15.32" I'd like to easily make choral scores with automatic beaming inside melismas and none outside. Inspired by https://code.google.com/p/lilypond/issues/detail?id=1308, I wrote a Lilypond Guile function to do the same thing as the reporter's Perl script. Unfortunately, I can't get it to work in all cases.
The first problem is that in situations like "c8[[ d]] e f", which I convert to "\autoBeamOn c8 \melisma d \melismaEnd \autoBeamOff e f", all four notes are beamed together. As far as I can tell, the auto-beaming state is ignored except at the first beamed note: when looking ahead to find how many notes to beam, the algorithm doesn't consider whether auto-beaming was turned off in the mean time. (Is this a bug?) I could fix this by attaching \noBeam to notes that aren't part of a melisma, but this feels hacky and it's actually somewhat tricky since it would mean keeping track of the current melisma state, considering things like nested sequential and parallel music, etc. Currently I don't have to worry about that. At any rate, at least I see how I could solve this problem in principle. The second problem is that c8[[ d]] e[[ f]] gets beamed as c8[ d e f]. I can't figure out how to solve this. If there were an object I could insert in the note sequence that would not be crossed by automatic beams, but otherwise had no effect, that would solve the problem. But I can't find one. c d s8*0 e f ==> c[ d e f] c d s8*0\noBeam e f ==> c[ d] e f c d \skip8*0 e f ==> c[ d e f] c d \skip8*0\noBeam e f ==> error c d \bar "" e f ==> c d e[ f], and it wouldn't work at bar lines anyway (which I have no way of detecting) c d r8*0 e f ==> c[ d] e[ f], but the rest is visible and the stem of the e is aligned with the rest instead of the note How much of the above is intentional behavior and how much is buggy? Is there any way of doing what I want without requiring manual beaming fixups from the user (which are a hassle, and would have to be explained in the documentation of my helper function)? Thanks, -- Ben _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
