- (iterator-ctor . ,ly:simultaneous-music-iterator::constructor)
- (start-callback . ,ly:music-sequence::minimum-start-callback)
- (length-callback . ,ly:music-sequence::maximum-length-callback)
- (to-relative-callback .
- ,ly:music-sequence::simultaneous-relative-callback)
- (types . (general-music simultaneous-music))
- ))
+ (iterator-ctor . ,ly:simultaneous-music-iterator::constructor)
+ (start-callback . ,ly:music-sequence::minimum-start-callback)
+ (length-callback . ,ly:music-sequence::maximum-length-callback)
+ (to-relative-callback .
+ ,ly:music-sequence::simultaneous-relative-callback)
+ (types . (general-music simultaneous-music))
+ ))