1 %% Do not edit this file; it is automatically
2 %% generated from LSR http://lsr.dsi.unimi.it
3 %% This file is in the public domain.
9 %% Translation of GIT committish: b2d4318d6c53df8469dfa4da09b27c15a374d0ca
10 doctitlees = "Transportar música con el menor número de alteraciones"
12 Este ejemplo utiliza código de Scheme para forzar las
13 modificaciones enarmónicas de las notas, y así tener el menor
14 número de alteraciones accidentales. En este caso se aplican las
19 Se quitan las dobles alteraciones
35 De esta forma se selecciona el mayor número de notas enarmónicas
40 %% Translation of GIT committish: d96023d8792c8af202c7cb8508010c0d3648899d
41 doctitlede = "Noten mit minimaler Anzahl an Versetzungszeichen transponieren."
42 texidocde = "Dieses Beispiel benutzt Scheme-Code, um enharmonische
43 Verwechslungen für Noten zu erzwingen, damit nur eine minimale Anzahl
44 an Versetzungszeichen ausgegeben wird. In diesem Fall gelten die
49 Doppelte Versetzungszeichen sollen entfernt werden
65 Auf diese Art werden am meisten natürliche Tonhöhen als enharmonische
69 %% Translation of GIT committish: 59968a089729d7400f8ece38d5bc98dbb3656a2b
71 Cet exemple, grâce à un peu de code Scheme, donne la priorité aux
72 enharmoniques afin de limiter le nombre d'altérations supplémentaires.
73 La règle appliquable est :
77 Les altérations doubles sont supprimées
93 Cette façon de procéder aboutit à plus d'enharmoniques naturelles.
97 doctitlefr = "Transposition et réduction du nombrer d'altérations accidentelles"
100 This example uses some Scheme code to enforce enharmonic modifications
101 for notes in order to have the minimum number of accidentals. In this
102 case, the following rules apply:
104 Double accidentals should be removed
119 In this manner, the most natural enharmonic notes are chosen.
122 doctitle = "Transposing pitches with minimum accidentals (\"Smart\" transpose)"
125 #(define (naturalize-pitch p)
126 (let ((o (ly:pitch-octave p))
127 (a (* 4 (ly:pitch-alteration p)))
128 ;; alteration, a, in quarter tone steps,
129 ;; for historical reasons
130 (n (ly:pitch-notename p)))
132 ((and (> a 1) (or (eq? n 6) (eq? n 2)))
135 ((and (< a -1) (or (eq? n 0) (eq? n 3)))
139 ((> a 2) (set! a (- a 4)) (set! n (+ n 1)))
140 ((< a -2) (set! a (+ a 4)) (set! n (- n 1))))
141 (if (< n 0) (begin (set! o (- o 1)) (set! n (+ n 7))))
142 (if (> n 6) (begin (set! o (+ o 1)) (set! n (- n 7))))
143 (ly:make-pitch o n (/ a 4))))
145 #(define (naturalize music)
146 (let ((es (ly:music-property music 'elements))
147 (e (ly:music-property music 'element))
148 (p (ly:music-property music 'pitch)))
150 (ly:music-set-property!
152 (map (lambda (x) (naturalize x)) es)))
154 (ly:music-set-property!
159 (set! p (naturalize-pitch p))
160 (ly:music-set-property! music 'pitch p)))
164 #(define-music-function (parser location m)
168 music = \relative c' { c4 d e g }
172 \transpose c ais { \music }
173 \naturalizeMusic \transpose c ais { \music }
174 \transpose c deses { \music }
175 \naturalizeMusic \transpose c deses { \music }