In this case it’s not that complicated, and you can do it in simpler ways. The
thing is a StaffGroup must be created before (in musical notation time) any
staves it’s supposed to contain. Be careful about when you create staves and
when they’re created automatically for lack of a staff context for a given
voice to live in.
Here are two examples:
%%%%%%%%%%%%%%%
\version "2.22.1"
music = \relative c'
\new StaffGroup <<
\new Staff { \repeat unfold 10 c'1 \break
\repeat unfold 10 c1 \break
\repeat unfold 10 c1 }
{ \skip 1*10
\new Staff { \repeat unfold 10 c,1 } } >>
\score{
\music
\layout{}
}
musicTwo =
\relative c'
\new StaffGroup {
{ \repeat unfold 10 c'1 }
<< { \break \repeat unfold 10 b1 }
\new Staff { \repeat unfold 10 g1 } >>
{ \break \repeat unfold 10 a1 }
}
\score{
\musicTwo
\layout{}
}
%%%%%%%%%%%%%
> 29 sep. 2021 kl. 10:07 skrev Xavier Scheuer <x.sche...@gmail.com>:
>
> On Wed, 29 Sept 2021 at 08:56, Evan Driscoll <eva...@gmail.com> wrote:
> >
> > I am probably missing something fundamental in my LilyPond knowledge that
> > would help with the following question, but I'm not sure what it is, and
> > I'm having a lot more difficulty than normal figuring out what to look for
> > in the manual.
> >
> > Anyway, the piece starts off in unison, then has a div. section written on
> > multiple staffs, then comes back together.
> >
> > I can get multiple staffs with
> > <<
> > { ...top part.. }
> > \new Staff { ...bottom part ...}
> > >>
> > but what I really want is a staff group. The bracket on the left would be
> > nice, but even more critical are the shared barlines.
> >
> > However, I can't figure out how to get a \new StaffGroup to work. If I use
> > it as shown in the manual (but for the top-level staff creation) with my
> > two inside, then I get *three* staves, the first one just empty.
> >
> > LilyBin exemplar with a couple of my attempts: http://lilybin.com/ul6alr/5
>
> Hello,
>
> In this case I typically use a combination of Keep_alive_together_engraver
> and VerticalAxisGroup.remove-layer with keepAliveInterfaces.
> See NR 1.6.2 Modifying single staves > Hiding staves
> http://lilypond.org/doc/v2.23/Documentation/notation/modifying-single-staves.html#hiding-staves
>
> Cheers,
> Xavier
>
> --
> Xavier Scheuer <x.sche...@gmail.com>
>
