Another question, one I've struggled with before.
The part splits out temporarily into divisi parts on multiple staffs. I
always have trouble getting the correct incantations to get the correct
result.
A naive attempt results in http://lilybin.com/1l8whf/5. This is enough
to
keep working, but it looks bad -- barlines don't cross between staffs,
and
there's no grouping a la
https://lilypond.org/doc/v2.22/Documentation/69/lily-9c91c2b7.png from
the
manual.
I can get a pair of staffs that are correct on their own by creating a
StaffGroup with two new staffs -- http://lilybin.com/1l8whf/9 -- but
the
original staff continues through. Omitting the explicit \new Staff
invocations doesn't help -- http://lilybin.com/1l8whf/11.
What's the right way to do this?