Re: workaround: keeping piano staves alive together in a RemoveEmptyStaffContext

[Kieren MacMillan]

Hi Valentin (et al.),

> this one has really kept bugging me for a while. I'm referring to
> http://code.google.com/p/lilypond/issues/detail?id=442
> (what else?)
>
> I have a huge score to publish within days, and I really need to find
> some solution.

HTH!
Kieren.

%%%%%%%%%%%%

\version "2.11.65"

show = { \set Staff.keepAliveInterfaces = #'(
    rhythmic-grob-interface
    multi-measure-rest-interface
    lyric-interface
    stanza-number-interface
    percent-repeat-interface)
}
hide = \unset Staff.keepAliveInterfaces

one = {
  \repeat unfold 4 { a4 b c' d'} \break
  \repeat unfold 4 { a4 b c' d'} \break
  \repeat unfold 4 { a4 b c' d'} \break
  a1
}
two = { \clef treble
  \show
  \repeat unfold 4 { a4 b c' d'} \break
  \repeat unfold 4 { a4 b c' d'} \hide \break
  R1*4 \break
  a1
}
three = { \clef bass
  \show
  \repeat unfold 4 { a4 b c' d'} \break
  R1*3 \hide R1 \break  %% notice the timing on the \hide here!!!!!!
  R1*4 \break
  a1
}
\score { <<
    \context Staff = one \one
    \new PianoStaff <<
      \new Staff = two \two
      \new Staff = three \three >>
    >>
    \layout {
        \context { \RemoveEmptyStaffContext }
    }
}

%%%%%%%