2014-05-29 21:16 GMT+02:00 Orm Finnendahl <orm.finnend...@hfmdk-frankfurt.de>:
> Hi,
>
> in the following example, the compound timesignature is only shown on
> the top staff. Is there a mechanism to show it in all staffs with the
> "2+3/4" without wxplicitely having to restate the compundMeter
> statement in each staff?
[...]
'compoundMeter' uses
\once \override Staff.TimeSignature.stencil = ...
to explecitely limit the stemcil-override to current Staff. Otherwise
the following code would return wrong output:
\score {
\relative c' <<
\new Staff {
\compoundMeter #'((3 2 4))
c4 c c c c
c4 c c c c
}
\new Staff {
\time 6/8
\repeat unfold 4 {
c4.
}
\time 4/4
c2 c
}
>>
\layout {
\context {
\Score
\remove "Timing_translator"
\remove "Default_bar_line_engraver"
}
\context {
\Staff
\consists "Timing_translator"
\consists "Default_bar_line_engraver"
}
}
}
OTOH, it's possible to redefine 'compoundMeter':
compoundMeter =
#(define-music-function (parser location ctx args) ((string? "Staff") pair?)
(let* ((mlen (calculate-compound-measure-length args))
(beat (calculate-compound-base-beat args))
(beatGrouping (calculate-compound-beat-grouping args))
(timesig (cons (ly:moment-main-numerator mlen)
(ly:moment-main-denominator mlen))))
#{
\once \override $ctx .TimeSignature.stencil = #(lambda (grob)
(grob-interpret-markup grob (format-compound-time args)))
\set Timing.timeSignatureFraction = #timesig
\set Timing.baseMoment = #beat
\set Timing.beatStructure = #beatGrouping
\set Timing.beamExceptions = #'()
\set Timing.measureLength = #mlen
#} ))
Now \compoundMeter #'((3 2 4)) is limited to current Staff, whereas
\compoundMeter Score #'((3 2 4)) is applied to the whole Score.
HTH,
Harm
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