2018-08-07 12:23 GMT+02:00 James Lowe <pkx1...@runbox.com>: >> timeSignatureFraction: (4 . 8) >> beatStructure: (2 2) >> baseMoment: #<Mom 1/8> >> beamExceptions: ()
>> > I have on supplementary based on what you have said. > > If you look at one of the original examples (I'll attach it here as well), > you can see engravings for 'single' notes (which may not be the same as > 'beats' hence my supplementary. Indeed, in 4/8 the beat (baseMoment) is 1/8 not 1/4 > This is 4/8 time but the notes are crotchets (i.e. 4 not 8) so is this > effectively '2' beats in this context ? True as well, beatStructure in 4/8 is '(2 2) So below works as expected: \new Staff \with { \consists "Measure_grouping_engraver" } { \time 4/8 a'4 4 } Though, there is another not yet mentioned point. MeasureGrouping also relies on the actual music rhythmically matching the beatStructure. \new Staff \with { \consists "Measure_grouping_engraver" } { \time 4/8 a'2 } Will print only one bracket. To get two brackets a second voice could be inserted, easily: \new Staff \with { \consists "Measure_grouping_engraver" } << { \time 4/8 a'2 } { s4 s } >> No bug I'd say, but likely worth explaining. Though, why is the a first bracket printed, even if no music rhythmically matches the beatStructure? See 3rd measure of: \new Staff \with { \consists "Measure_grouping_engraver" } { \time 4/8 a'4 4 a'2*7/4 a'8 | } That I can't explain. Others? Cheers, Harm _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond