Editing Use square bracket at the start of a staff group

The system start delimiter <code>SystemStartSquare</code> can be used by setting it explicitly in a <code>StaffGroup</code> or <code>ChoirStaff</code> context.

<lilypond version="2.24.0">
\score {
  \new StaffGroup { << 
  \set StaffGroup.systemStartDelimiter = #'SystemStartSquare
    \new Staff { c'4 d' e' f' }
    \new Staff { c'4 d' e' f' }
  >> }
}
</lilypond>

[[Category:Staff notation]]
[[Category:Contexts and engravers]]
[[Category:Included in the official documentation]]