Re: Custom bar count

[Aaron Hill]

On 2021-04-06 9:02 pm, Gabriel Borin wrote:
> Hello,
>
> I am working on a part based on a manuscript. The arranger took many
> liberties on bar count, and since I am just replacing one lost part, I 
> need
> to do 2 things:
>
>    - I need the bar count to start at measure 7 (basically, mm.7 = 1).
>    - I need to exclude a single bar in the middle from the bar count.
>
> Could anybody give me some advice on that?

You can \set the currentBarNumber as you need to.  Additionally, you 
could use a function as follows to skip a particular number of bars if 
you do not easily know what the bar number should be:

%%%%
\version "2.22.0"

skipBarNumbers =
#(define-music-function
  (count) (integer?)
  (define (proc context)
   (ly:context-set-property! context 'currentBarNumber
    (+ count (ly:context-property context 'currentBarNumber))))
  #{ \context Score \applyContext #proc #})

{
  \override Score.BarNumber.break-visibility = #all-visible
  \set Score.currentBarNumber = 7
  R1*3 \bar "||" \skipBarNumbers 3 R1*2
}
%%%%


-- Aaron Hill

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