Re: Beaming across voices and staffs

[Lukas-Fabian Moser]

Hi Niels,

Am 17.09.21 um 12:04 schrieb Niels:
> See the following example:
>
> \version "2.20.0"
> \score {
>   \new PianoStaff
>   <<
>     \new Staff {\clef G c''8 r}
>     \new Staff {\clef F r8 c}
>   >>
> }
>
> Is it possible to have a beam between the c'' and the c when they are 
> different voices and different staves?
> Of course the problem can be solved using changing staff, but then the 
> rest in the upper staff is not shown:
>
> \score {
>   \new PianoStaff
>   <<
>     \new Staff = "up" {\clef G c''8[ \change Staff = "low" c8]}
>     \new Staff = "low" {\clef F r8 s8}
>   >>
> }

As far as I know, notes can only be beamed if they are in the same 
voice. (Not speaking of things like moving Beam_engraver to another 
context etc.)

I think the standard solution would be multiple voices in the upper staff:

\version "2.20.0"

\score {
  \new PianoStaff
  <<
    \new Staff = "up" {
      c''8[
      <<
        \change Staff = "low" c8]
        \new Voice { \oneVoice r8 }
      >>
    }
    \new Staff = "low"
    {
      \clef F r8 s8
    }
  >>
}

Lukas