Re: Custom bar count

[Gabriel Borin]

Aaron, 

Thank you, this was very helpful! 

It worked! 

Sincerely,

Gabriel Borin

On Wed, Apr 7, 2021, 00:48 Aaron Hill <lilypond@hillvisions.com> wrote:

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