/*
Run through heads using a loop. Since Ledger_line_spanner can
contain a lot of noteheads, superlinear performance is too slow.
*/
extract_item_set (me, "note-heads", heads);
/*
Run through heads using a loop. Since Ledger_line_spanner can
contain a lot of noteheads, superlinear performance is too slow.
*/
extract_item_set (me, "note-heads", heads);