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Re: Changing volta number text

From: Aaron Hill
Subject: Re: Changing volta number text
Date: Fri, 14 May 2021 17:13:32 -0700
User-agent: Roundcube Webmail/1.4.9

On 2021-05-14 2:47 pm, Ralph Palmer wrote:
I *did* find a thread in the archive :
change of volta number
which has gotten me close, but has an extra end-repeat before the first
volta ending bracket. I'm also not sure the format is the most recent.

How about this?

\version "2.22.0"
\include "english.ly"

changeVoltaText =
  (text) (markup?)
  (define (is-volta-text? cmd)
   (and (pair? cmd) (eq? 'volta (car cmd)) (markup? (cadr cmd))))
  (define (replace-volta-text cmd)
   (if (is-volta-text? cmd) `(volta ,text) cmd))
  (define (proc ctxt)
   (let ((cmds (ly:context-property ctxt 'repeatCommands)))
    (set! cmds (map replace-volta-text cmds))
    (ly:context-set-property! ctxt 'repeatCommands cmds)))
  #{ \context Score \applyContext #proc #} )

test = {
  \time 3/4
  \repeat volta 3
    a'4 b' c' |
    b'4 c' d' |
  \alternative {
      \changeVoltaText "1., 3."
      e'4 f' g' |
      d'4 c' b' |
      \changeVoltaText \markup \with-color #red "4."
      g'4 a' b' |

\score {

NOTE: I'm using \markup in the final alternative just to demonstrate that it works.

-- Aaron Hill

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