1 \header { texidoc = "Deeply nested system braces/brackets/etc. may be created with the
2 @code{Nested_system_start_delimiter_engraver}"
12 \new StaffGroup \with {
13 \remove "System_start_delimiter_engraver"
14 \consists "Nested_system_start_delimiter_engraver"
17 \override StaffGroup.NestedSystemStartDelimiter #'styles = #'(line-bracket bracket line-bracket)
18 \set StaffGroup.systemStartDelimiterHierarchy = #'((a (b)) c)