Re: "Unconnected" simultaenous staff groups

[Lukas-Fabian Moser]

> > But now I'd like to have the same not for staves but for piano staves/staff
> > groups: Several piano staves, each of which has its own SystemStartBar (but
> > the SystemStartBars themselves should not be connected to each other). In
> > the following example, the SystemStartBar is missing in both piano staves:
> >
> >
> > \version "2.19.80"
> >
> > \layout {
> >    \context {
> >      \Score
> >      \omit SystemStartBar
> >    }
> > }
> >
> > <<
> >    \new PianoStaff <<
> >      \new Staff a4
> >      \new Staff a4
> >    >>
> >    \new PianoStaff <<
> >      \new Staff a4
> >      \new Staff a4
> >    >>
> Likely:
> http://lilypond.org/doc/v2.19/Documentation/snippets/staff-notation#staff-notation-vertical-aligned-staffgroups-without-connecting-systemstartbar
This is great! Thanks much! Quite clever actually, turning one extra 
brace/bracket into a bar line ...

Here, for the sake of completeness, is the solution that works for Piano 
Staves (and is reduced to the strictly necessary):

\version "2.19.80"

\layout {
  \context {
    \PianoStaff
     systemStartDelimiterHierarchy =
     #'(SystemStartBracket (SystemStartBrace a b))
  }
  \context {
    \Score
    \override SystemStartBracket.style = #'bar-line
    \override SystemStartBracket.padding = #-0.1
    \override SystemStartBracket.thickness = #1.6
    \omit SystemStartBar
  }
}

<<
  \new PianoStaff <<
    \new Staff a4
    \new Staff a4
  >>
  \new PianoStaff <<
    \new Staff a4
    \new Staff a4
  >>
>>

Best
Lukas