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scheme modalTranspose

From: Gianmaria Lari
Subject: scheme modalTranspose
Date: Fri, 9 Mar 2018 23:26:08 +0100

This function transpose modally some music in the seven degrees of the scale:

\version "2.19.81"
multiModal = #(define-music-function (scale patternMelodic) (ly:music? ly:music?)
             #@(map(lambda (p)
               #{ \modalTranspose c #(ly:make-pitch -1 p) $scale $patternMelodic #})
             (iota 7))

scale = {c d e f g a b}

\score { 
  \multiModal \scale {c' d' c' r}
  \layout {}
If I want to make the transposition only for the first three degrees of the scale I have to change 

(iota 7)


(iota 3)

What if I want to pass to the function the number of transposition ? So that if I want the first four transpositions I could write something like 

  \multiModal \scale {c' d' c' r} 4


Thank you, g.

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