2018-08-08 22:21 GMT+02:00 Thomas Morley <thomasmorle...@gmail.com>: > > Well, this whole post was meant to explain my thoughts while coding > the example from my previous mail. > I expected the code to fail like my previous. > It doesn't. > Though, even after your hints above, what's the essential difference? > > I'll investigate.
The essential difference is the rhythm of the control-voice. The code below never prints single instrument staves. But changing in controlDivisi s4 s s s -> s1 works. Changing s4 s s s -> $#{ s4 s s s #} works as well. WTF? \version "2.19.82" one = { e'1 f'4 g' a' f' g'1 } two = { c'1 d'1 e'1 } breaks = { s1 \break s1 \break s1 } switchOff = \set Staff.keepAliveInterfaces = #'() switchOn = \unset Staff.keepAliveInterfaces controlDivisi = { \switchOn % s1 % s4 s s s $#{ s4 s s s #} \switchOff s \switchOn s1 } \new StaffGroup \with { \consists "Keep_alive_together_engraver" } << \new Staff = "single1" \with { \override VerticalAxisGroup.remove-layer = 2 } << \breaks \one >> \new Staff = "single2" \with { \override VerticalAxisGroup.remove-layer = 2 } << \breaks \two >> \new Staff = "divisi" \with { \RemoveAllEmptyStaves \override VerticalAxisGroup.remove-layer = 1 } << \controlDivisi \new Voice { \voiceOne \one } \new Voice { \voiceTwo \two } >> >> Cheers, Harm _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user