Music event type span-event is in music objects of type BeamEvent, BendSpanEvent, CrescendoEvent, DecrescendoEvent, EpisemaEvent, FingerGlideEvent, LigatureEvent, MeasureCounterEvent, MeasureSpannerEvent, OptionalMaterialEvent, PhrasingSlurEvent, SlurEvent, SostenutoEvent, SpanEvent, StaffHighlightEvent, StaffSpanEvent, SustainEvent, TempoGradualChangeEvent, TextSpanEvent, TremoloSpanEvent, TrillSpanEvent, TupletSpanEvent, UnaCordaEvent and VoltaSpanEvent.

Not accepted by any engraver or performer.