Re: Mid-piece NullVoice creating?

[David Kastrup]

Simon Albrecht <address@hidden> writes:

> Hello,
>
> am I doing anything wrong here?
>
> %%%%%%%%%%%%%
> music = {
>   1
> }
>
> \score {
>   \displayMusic {
>     \new Staff <<
>       \new NullVoice \music
>       \new Voice \music
>     >>
>     \break
>     \new GrandStaff <<
>       \new Staff <<
>         \new NullVoice \music
>         \new Voice \music
>       >>
>       \new Voice \music
>     >>
>   }
> }
> %%%%%%%%%%%
>
> The second NullVoice (inside the GrandStaff), unlike the first, is not
> included in the same staff as the Voice, but instead gets a staff of
> its own. Bug?

No, just an incorrect analysis of what is happening here.  The NullVoice
has nothing to do with it.  Remove it and get the same result.

Here is a clue what is really happening.

%%%%%%%%%%%%%
music = {
  1
}

\score {
  \displayMusic {
    \new Staff \with { \override StaffSymbol.color = #red } <<
      \new NullVoice \music
      \new Voice \music
    >>
    \break
    \new GrandStaff <<
      \new Staff <<
%        \new NullVoice \music
        \new Voice \music
      >>
      \new Voice \music
    >>
  }
}
%%%%%%%%%%%

Issue 4579, committed rather recently, tries explaining this phenomenon
somewhat more accurately than before and describes a remedy.

-- 
David Kastrup