On Sun 07 Jun 2020 at 12:50:22 (+1000), Vaughan McAlley wrote:
>
> Setting the beat structure for beam subdivision seems to persist through
> time signature changes. I think it would be preferable to reset everything
> at a change of time signature, just like what happens to beamExceptions.
Does doing it like this help at all? I've commented some of your lines
with %%.
Cheers,
David.
\version "2.20.0"
\version "2.19.49" % 2016-07-27
%% Beam compound dotted crochets separately.
%% 2.18.2 can't parse this format for beatStructure
\layout {
\context {
\Score
\overrideTimeSignatureSettings
6/8 % timeSignatureFraction
1/8 % baseMomentFraction
3,3 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
9/8 % timeSignatureFraction
1/8 % baseMomentFraction
3,3,3 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
12/8 % timeSignatureFraction
1/8 % baseMomentFraction
3,3,3,3 % beatStructure
#'() % beamExceptions
}
}
\version "2.19.49" % 2017-11-28
%% Beam crochets separately.
%% 2.18.2 can't parse this format for beatStructure
\layout {
\context {
\Score
\overrideTimeSignatureSettings
2/2 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
3/2 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
4/2 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
3/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
4/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
5/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
6/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
7/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2,2,2 % beatStructure
#'() % beamExceptions
\overrideTimeSignatureSettings
8/4 % timeSignatureFraction
1/8 % baseMomentFraction
2,2,2,2,2,2,2,2 % beatStructure
#'() % beamExceptions
}
}
\score {
\relative c' {
\time 4/4
c8 d16 e f32 e d c d e f g a8 b c4 |
\bar "||"
\time 9/8
c,8^"Expected behaviour" d e e f g g a b |
\bar "||"
\break
\time 4/4
\set subdivideBeams = ##t
%%\set baseMoment = #(ly:make-moment 1/8)
%%\set beatStructure = 2,2,2,2
c,8 d16 e f32 e d c d e f g a8 b c4 |
\bar "||"
% \time 3,3,3 9/8 doesn't work
\time 9/8
\set subdivideBeams = ##f % this makes no difference
c,8^"???" d e e f g g a b |
\bar "||"
% This should be unnecessary
%%\set baseMoment = #(ly:make-moment 1/8)
%%\set beatStructure = 3,3,3
c,8^"Better" d e e f g g a b |
\bar "||"
}
\layout {}
}
