Re: Automatically numbering "instrument name"?

[Malte Meyn]

Am 09.08.2017 um 06:34 schrieb Manuela Gößnitzer:
> Do you mean something like this?
>
> #(define score-number 0) %% insert in first score
>
> #(set! score-number (1+ score-number))
>
>   \new PianoStaff \with {
>      instrumentName = \markup {
>   #(number->string score-number) "."
>      }
>    }
> \relative c'' { c }

You would have to do this set! before every score. Try the following 
instead:

\version "2.19.64"

#(define sn 0)

#(define (score-number)
   (set! sn (1+ sn))
   (string-append (number->string sn) "."))

\new Staff \with {
  instrumentName = #(score-number)
} c'
\new Staff \with {
  instrumentName = #(score-number)
} c'
\new Staff \with {
  instrumentName = #(score-number)
} c'
\new Staff \with {
  instrumentName = #(score-number)
} c'
\new Staff \with {
  instrumentName = #(score-number)
} c'