5 Volta (Semi folded) behavior. Voltas can start on non-barline moments.
6 If they don't barlines should still be shown.
12 \context Voice \relative c'' {
13 %% repeat non aligning with barlines.
14 \repeat volta 3 { c^"3x 0alt" d e }
15 %% less alts than body
16 \repeat volta 4 { c^"4x 2alt" d } \alternative { e f }
17 %% more alts than body
18 \repeat volta 2 { c^"2x 3alt" d } \alternative { e f g }