Re: Changing volta number text

[Aaron Hill]

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 =
#(define-music-function
  (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' |
    }
  }
  c'1
}

\score {
  \test
}
%%%%

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


-- Aaron Hill