Re: Remove 3rd Staff in PianoStaff if empty

[Malte Meyn]

Am 15.08.2015 um 15:49 schrieb Orm Finnendahl:
> I tried all sorts of combinations of removing and consisting the
> keep-alive-together engraver, tried to create an explicit staffgroup
> for the main piano staves within the PianoStaff (this results in
> loosing the centered instrument name and the curly braces), but it
> didn't work.

If PianoStaff accepts StaffGroup the alignment works, so here is a solution:

\version "2.19.25"

\new PianoStaff \with {
  instrumentName = "Piano"
} <<
  \new Staff {
    R1 % music
  }
  \new StaffGroup <<
    \new Staff {
      R1 % music
    }
    \new Staff {
      R1 % music
    }
  >>
>>

\layout {
  \context {
    \Staff
    \RemoveEmptyStaves
  }
  \context {
    \StaffGroup
    \consists Keep_alive_together_engraver
    \remove System_start_delimiter_engraver
  }
  \context {
    \PianoStaff
    \accepts StaffGroup
    \remove Keep_alive_together_engraver
  }
}