Re: Repeat volta Score.startRepeatBarType & Score.endRepeatBarType

[Stu McKenzie]

On 2023-11-09 08:42, Michael Werner wrote:

On Wed, Nov 8, 2023 at 7:21 PM Stu McKenzie <swwsoft@handsmck.com> wrote:

I'd like to differentiate between two repeat voltas in a score by using
2 different start and end bar types.

The following bar types are already defined in LilyPond:
  Score.startRepeatBarType = #"[|:"
  Score.endRepeatBarType = #":|]"

I'd like to define a second bar type with double opening and closing
parentheses, e.g.:
  Score.startRepeatBarType = #"[[|:"
  Score.endRepeatBarType = #":|]]"

How would that be acheived?

Hi there,

Maybe something like this:

\version "2.25.9"
\language "english"

\new Staff {
  \defineBarLine "[[|:" #'( #t #t #t )
  \defineBarLine ":|]]" #'( #t #t #t )
  \new Voice {
    \relative c' {
      \set Score.startRepeatBarType = #"[|:"
      \set Score.endRepeatBarType = #":|]"
      c' d e f
      \repeat volta 2 {
        c d e f
      }
      c d e f
      \set Score.startRepeatBarType = #"[[|:"
      \set Score.endRepeatBarType = #":|]]"
      \repeat volta 2 {
        c d e f
      }
    }
  }
}

which produces:

For details on how to define the new bar lines, see http://lilypond.org/doc/v2.25/Documentation/notation/bar-lines

But basically the two \defineBarLine lines are what actually define the bars lines to use, then later on you use them as desired. The three bool values after define the behavior a beginning of line, mid line, end end of line. Those will need adjusted to your needs.

--

Michael

    Thank you, Michael, for the working example.
    
    It seems that additional combinations of defineBarLine were added in
    version 2.25.
    I downloaded version 2.25.9 and found that adding break resulted in
    inconsistent results using the defineBarLine with the
    Score.startRepeatBarType and Score.endRepeatBarType.
    
    For example simply adding a \break before changing the
    Score.startRepeatBarType, i.e.:
    
          c d e f
          \break
          \set Score.startRepeatBarType = #"[[|:"
    
    results in the bar line at the end of the first line to include the
    new start repeat bar type.
    
    I've tried defining various combinatons of bar lines, as defined on
    the documentation for 2.25.9, e.g.:
      \defineBarLine "[[|:-StartDouble_fff" #'( #f #f #f )
      \defineBarLine "[[|:-EndDouble_fff" #'( #f #f #f )
      \defineBarLine "[[|:-StartDouble_ttf" #'( #t #t #f )
      \defineBarLine "[[|:-EndDouble_ttf" #'( #t #t #f )
      \defineBarLine "[[|:-StartDouble_ttt" #'( #t #t #t )
      \defineBarLine "[[|:-EndDouble_ttt" #'( #t #t #t )
    but cannot get the results that I'd like, especially when
    alternatives are added to the repeat volta.
    
    Any further suggestions?