Re: How to define a every-nth-bar-number-visible-except-first procedure?

Am Sa., 27. Juni 2026 um 12:50 Uhr schrieb Richard Shann
<[email protected]>:
>
> When typesetting music where line breaks are allowed at half bars the
> every-nth-bar-number-visible set to 1 and the break-visibility set to
> #begin-of-line-visible gives the bar numbers at the start of each line
> with the bar number in parenthesis if the line starts half way through
> the bar. This is good, but has the unfortunate consequence that it
> prints the bar number 1 at the start of the music.
> Can someone suggest how to avoid that? I can see that it would be
> possible to augment translations-functions.scm file in the Lily sources
> to include something like
>
> (define-public ((every-nth-bar-number-visible-except-first n) barnum
> mp)
>   (and (> n 0) (= 0 (modulo barnum n))))
>
> but I can't figure out how to do this from a LilyPond score.
>
> Here's a MWE that shows the problem
>
> \version "2.24"
>
> \layout {\context {\Score
>     barNumberVisibility = #(every-nth-bar-number-visible 1)
>     \override Score.BarNumber.break-visibility = #begin-of-line-visible }}
>  {
>     \repeat unfold 200 {c''d'' \bar "" e'' f'' }
>                         }
>
> Richard Shann
>
>
>

Below works here:


#(define-public ((every-nth-bar-number-visible-except-first n) barnum mp)
  (and (> barnum 1) (= 0 (modulo barnum n))))

\layout {
  \context {
    \Score
    barNumberVisibility = #(every-nth-bar-number-visible-except-first 1)
  }
}
{ \repeat unfold 200 { c''d'' \bar ""  e'' f'' } }

Cheers,
Harm