(define-span-event-display-method PhrasingSlurEvent (event parser) #f "\\(" "\\)")
(define-span-event-display-method SustainEvent (event parser) #f "\\sustainOn" "\\sustainOff")
(define-span-event-display-method SostenutoEvent (event parser) #f "\\sostenutoOn" "\\sostenutoOff")
(define-span-event-display-method PhrasingSlurEvent (event parser) #f "\\(" "\\)")
(define-span-event-display-method SustainEvent (event parser) #f "\\sustainOn" "\\sustainOff")
(define-span-event-display-method SostenutoEvent (event parser) #f "\\sostenutoOn" "\\sostenutoOff")