Polyphonic scores consist of many staves. These staves can be constructed in three different ways
\new GrandStaff
\relative <<
\new Staff { c1 c }
\new Staff { c c }
>>
\new StaffGroup
\relative <<
\new Staff { c1 c }
\new Staff { c c }
>>
\relative <<
\new Staff { c1 c }
\new Staff { c c }
>>
The bar lines at the start of each system are
SystemStartBar (lilypond-internals)
,
SystemStartBrace (lilypond-internals)
, and
SystemStartBracket (lilypond-internals)
. Only one of these types is created
in every context, and that type is determined by the property
systemStartDelimiter.
This page is for LilyPond-2.4.5 (stable-branch).