Le mardi 30 mai 2023 à 20:39 -0400, msk...@ansuz.sooke.bc.ca a écrit : > I need, at each point in time, to have at most one note per track, exactly one > track per note, and silence in any leftover tracks, regardless of the > voice/chord structure of the music.
That sounds like you want a performer-based approach. Like: ``` \version "2.24.1" #(define ((Keep_only_engraver i) context) (let ((j 0)) (make-performer (listeners ((note-event performer event) (unless (eqv? i j) (ly:event-set-property! event 'pitch #f)) (set! j (1+ j)))) ((stop-translation-timestep performer) (set! j 0))))) #(define (scores n music) (apply values (map (lambda (i) #{ \score { \midi { \context { \Score \consists #(Keep_only_engraver i) } } #music } #}) (iota n)))) mus = << \new Staff { c'1 d'2 d'4 e'4 } \new Staff << { g'1 a'2 a'4 b'4 } \\ { g1 g1 } >> >> { \mus } $(scores 3 mus) % 3 is the max number of simutaneous notes ```
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