On 2020-02-22 10:47 am, Gilberto Agostinho wrote:
Would anyone have an idea of how could I use \showStaffSwitch only for
non-beamed notes? I think these switch lines tend to be omitted when
notes
are beamed, since the voicing is obvious in those cases.
Something like this might work:
%%%%
\version "2.19.82"
whenSharedBeam = #(lambda (grob)
(define (beam-from-notehead nh)
(let* ((nc (ly:grob-parent nh X))
(stem (ly:grob-object nc 'stem)))
(if (ly:grob? stem) (ly:grob-object stem 'beam) '())))
(let* ((lb (beam-from-notehead (ly:spanner-bound grob LEFT)))
(rb (beam-from-notehead (ly:spanner-bound grob RIGHT))))
(and (ly:grob? lb) (ly:grob? rb) (eq? lb rb))))
\layout {
\context {
\Voice
\override VoiceFollower.transparent = \whenSharedBeam
}
}
\autochange {
\showStaffSwitch
c2 g'4 f8. f'16 b'8 a fis2.
}
%%%%
The principle is to check whether the NoteHeads being connected by the
VoiceFollower have a shared Beam.
-- Aaron Hill
