2018-08-08 22:21 GMT+02:00 Thomas Morley <[email protected]>:
>
> 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
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