Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Critical
New issue 1525 by colinpkc...@gmail.com: Autobeaming can require
zero-length beat
http://code.google.com/p/lilypond/issues/detail?id=1525
Note that this may be related to issue 1524.
Report by Phil:
I'm no expert on this, but have just given the docs a good read, and the
Notation Ref says:
"By default baseMoment is set to one over the denominator of the time
signature" - so in this case, it's a quarter note. You're trying to set
beams on eighth note boundaries, so it won't work. You also need to add
\set Timing.beamExceptions = #'() to stop beamExcpetions taking over. That
said, I still think there may be a bug here, and would welcome a comment
from a beamMeister. The following gives the attached image:
\relative c' {
\time 3/4
c8 c c c c c
\set Timing.baseMoment = #(ly:make-moment 1 8)
\set Timing.beamExceptions = #'()
\set Timing.beatStructure = #'(3 3)
c c c c c c
\set Timing.beatStructure = #'(0 3 3)
c c c c c c
}
Carl:
This is also a bug. One should never need to make a zero-length beat to
affect autobeaming behavior. I don't know if it's the same bug or another
bug.
Phil's code is exactly what I would have written as the way to solve the
original request (except that I would have reversed the order of the
beamExceptions and beatStructure settings. I don't know why it didn't work.
Again, it may be an issue of the special rule for beaming 3/4 time.
If nobody else does it in the meantime, I'll investigate when I get the
time.
Attachments:
BeamExceptions.png 3.3 KB
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