(define-display-method RevertProperty (expr)
(let* ((symbol (ly:music-property expr 'symbol))
(properties (ly:music-property expr 'grob-property-path
(define-display-method RevertProperty (expr)
(let* ((symbol (ly:music-property expr 'symbol))
(properties (ly:music-property expr 'grob-property-path
- (list (ly:music-property expr 'grob-property)))))
- (format #f "\\revert ~{~a~^.~}~a"
+ (list (ly:music-property expr
+ 'grob-property))))
+ (once (ly:music-property expr 'once #f)))
+ (format #f "~a\\revert ~{~a~^.~}~a"
+ (if once "\\once " "")