(define-span-event-display-method TextSpanEvent (event parser) #f "\\startTextSpan" "\\stopTextSpan")
(define-span-event-display-method TrillSpanEvent (event parser) #f "\\startTrillSpan" "\\stopTrillSpan")
(define-span-event-display-method StaffSpanEvent (event parser) #f "\\startStaff" "\\stopStaff")
(define-span-event-display-method TextSpanEvent (event parser) #f "\\startTextSpan" "\\stopTextSpan")
(define-span-event-display-method TrillSpanEvent (event parser) #f "\\startTrillSpan" "\\stopTrillSpan")
(define-span-event-display-method StaffSpanEvent (event parser) #f "\\startStaff" "\\stopStaff")