X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=input%2Flsr%2Ftransposing-pitches-with-minimum-accidentals-smart-transpose.ly;h=d6b7695aa4ac4db12e17f627620190e26f62bcfb;hb=5b2bdf8c532aa1b4aa8626f6847938f2ef4ba1be;hp=cefad9402753957ba5b00495daf9811652edfe63;hpb=def21b306e2b8fa2d5630fab0878e9922e197f0c;p=lilypond.git diff --git a/input/lsr/transposing-pitches-with-minimum-accidentals-smart-transpose.ly b/input/lsr/transposing-pitches-with-minimum-accidentals-smart-transpose.ly index cefad94027..d6b7695aa4 100644 --- a/input/lsr/transposing-pitches-with-minimum-accidentals-smart-transpose.ly +++ b/input/lsr/transposing-pitches-with-minimum-accidentals-smart-transpose.ly @@ -1,6 +1,6 @@ %% Do not edit this file; it is auto-generated from input/new %% This file is in the public domain. -\version "2.11.57" +\version "2.12.0" \header { doctitlees = "Transportar música con el menor número de alteraciones" texidoces = " @@ -31,6 +31,37 @@ De esta forma se selecciona el mayor número de notas enarmónicas naturales. " + +doctitlede = "Noten mit minimaler Anzahl an Versetzungszeichen transponieren." + +texidocde = "Dieses Beispiel benutzt Scheme-Code, um enharmonische +Verwechslungen für Noten zu erzwingen, damit nur eine minimale Anzahl +an Versetzungszeichen ausgegeben wird. In diesem Fall gelten die +folgenden Regeln: + +@itemize +@item +Doppelte Versetzungszeichen sollen entfernt werden + +@item +His -> C + +@item +Eis -> F + +@item +Ces -> B + +@item +Fes -> E + +@end itemize + +Auf diese Art werden am meisten natürliche Tonhöhen als enharmonische +Variante gewählt. +" + + lsrtags = "pitches" texidoc = "This example uses some Scheme code to enforce enharmonic modifications for notes in order to have the minimum number of @@ -59,10 +90,12 @@ In this manner, the most natural enharmonic notes are chosen. doctitle = "Transposing music with minimum accidentals" } % begin verbatim + #(define (naturalize-pitch p) (let* ((o (ly:pitch-octave p)) (a (* 4 (ly:pitch-alteration p))) - ; alteration, a, in quarter tone steps, for historical reasons + ; alteration, a, in quarter tone steps, + ; for historical reasons (n (ly:pitch-notename p))) (cond ((and (> a 1) (or (eq? n 6) (eq? n 2))) @@ -83,32 +116,32 @@ In this manner, the most natural enharmonic notes are chosen. (e (ly:music-property music 'element)) (p (ly:music-property music 'pitch))) (if (pair? es) - (ly:music-set-property! + (ly:music-set-property! music 'elements (map (lambda (x) (naturalize x)) es))) (if (ly:music? e) - (ly:music-set-property! + (ly:music-set-property! music 'element (naturalize e))) (if (ly:pitch? p) - (begin - (set! p (naturalize-pitch p)) - (ly:music-set-property! music 'pitch p))) + (begin + (set! p (naturalize-pitch p)) + (ly:music-set-property! music 'pitch p))) music)) naturalizeMusic = #(define-music-function (parser location m) - (ly:music?) - (naturalize m)) + (ly:music?) + (naturalize m)) music = \relative c' { c4 d e g } \score { \new Staff { - \transpose c ais \music - \naturalizeMusic \transpose c ais \music - \transpose c deses \music - \naturalizeMusic \transpose c deses \music + \transpose c ais { \music } + \naturalizeMusic \transpose c ais { \music } + \transpose c deses { \music } + \naturalizeMusic \transpose c deses { \music } } \layout { } }