### 1.2.63 span-event

Music event type `span-event` is in music objects of type BeamEvent, CrescendoEvent, DecrescendoEvent, EpisemaEvent, LigatureEvent, MeasureCounterEvent, PhrasingSlurEvent, SlurEvent, SostenutoEvent, SpanEvent, StaffSpanEvent, SustainEvent, TextSpanEvent, TremoloSpanEvent, TrillSpanEvent, TupletSpanEvent and UnaCordaEvent.

Not accepted by any engraver or performer.

#### Internals Reference v2.18.2 (稳定分支).