https://codereview.appspot.com/557670043/diff/569610043/input/regression/system-start-brace-style.ly File input/regression/system-start-brace-style.ly (right):
https://codereview.appspot.com/557670043/diff/569610043/input/regression/system-start-brace-style.ly#newcode26 input/regression/system-start-brace-style.ly:26: '(SystemStartBracket SystemStartBrace SystemStartSquare SystemStartBar)) Not being super familiar with Scheme, this took me a while to understand. If I eventually did (correctly), I think just spelling out the four lines is more readable: \new StaffGroup \with { systemStartDelimiter = SystemStartBracket } << b1 b1 >> \new StaffGroup \with { systemStartDelimiter = SystemStartBrace } << b1 b1 >> \new StaffGroup \with { systemStartDelimiter = SystemStartSquare } << b1 b1 >> \new StaffGroup \with { systemStartDelimiter = SystemStartBar } << b1 b1 >> https://codereview.appspot.com/557670043/
