Music event type busy-playing-event
is in Music objects of type BusyPlayingEvent
Accepted by: Cluster_spanner_engraver, Completion_heads_engraver, Drum_note_performer, Drum_notes_engraver, Note_heads_engraver, Note_performer and Tab_note_heads_engraver
This page is for LilyPond-2.6.3 (stable-branch).