Le 20/11/2022 à 00:02, Luca Fascione a écrit :
Hi all, I have some 2 voice music coming from musicxml like this<a' c>4 <g b>8. <d g\2>16 ~ ~ <d g>2. and I'd like to split it into 2 voices instead: << \new Voice ... { ... a4 g8. d16~ d2. ... } \new Voice ... { ... c4 b8. g16~ g2. ... } >> is there any software / trick that I could use? (I use Frescobaldi, but I couldn't find a transformation for this purpose)
There are a number of snippets floating around for that IIRC, basically variations on the theme
\version "2.22.2"
#(use-modules (ice-9 receive))
selectNote =
#(define-music-function (index music) (index? ly:music?)
(music-map
(lambda (m)
(if (music-is-of-type? m 'event-chord)
(let ((elts (ly:music-property m 'elements)))
(receive (rhythmic arts)
(partition (music-type-predicate 'rhythmic-event)
elts)
(if (< (1- index)
(length rhythmic))
(let* ((elt (list-ref elts (1- index)))
(elt-arts (ly:music-property elt 'articulations)))
(set! (ly:music-property elt 'articulations)
(append elt-arts (map ly:music-deep-copy arts)))
elt)
#{ #})))
m))
music))
mus = \relative {
<a' c>4 <g b>8. <d g\2>16~ <d g>2.
}
\new Staff <<
\new Voice {
\voiceOne
\selectNote 2 \mus
}
\new Voice {
\voiceTwo
\selectNote 1 \mus
}
>>
Best,
Jean
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