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6.3.2 Music properties
The NoteEvent object is the first object of the
'elements property of someNote.
someNote = c' \displayMusic \someNote ===> (make-music 'EventChord 'elements (list (make-music 'NoteEvent 'duration (ly:make-duration 2 0 1 1) 'pitch (ly:make-pitch 0 0 0))))
The display-scheme-music function is the function used by
\displayMusic to display the Scheme representation of a music
expression.
#(display-scheme-music (first (ly:music-property someNote 'elements))) ===> (make-music 'NoteEvent 'duration (ly:make-duration 2 0 1 1) 'pitch (ly:make-pitch 0 0 0))
Then the note pitch is accessed through the 'pitch property
of the NoteEvent object,
#(display-scheme-music (ly:music-property (first (ly:music-property someNote 'elements)) 'pitch)) ===> (ly:make-pitch 0 0 0)
The note pitch can be changed by setting this ’pitch property,
#(set! (ly:music-property (first (ly:music-property someNote 'elements)) 'pitch) (ly:make-pitch 0 1 0)) ;; set the pitch to d'. \displayLilyMusic \someNote ===> d'
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Autres langues : español.