(let ((where (ly:context-property-where-defined context 'middleCPosition))
(oc0 (ly:context-property context 'originalCentralCPosition)))
(ly:context-set-property! context 'middleCPosition oc0)
- (ly:unset-context-property where 'originalCentralCPosition)
- (ly:unset-context-property where 'ottavation))
+ (ly:context-unset-property where 'originalCentralCPosition)
+ (ly:context-unset-property where 'ottavation))
(let* ((where (ly:context-property-where-defined context 'middleCPosition))
(c0 (ly:context-property context 'middleCPosition))
(new-c0 (+ c0 (* -7 octavation)))