Re: Scheme : compiling text and score sequences

[Jan-Peter Voigt]

Hello,

to work with foot- or end-notes its good to know the current position in 
music - of course this doesn't make sense for a paragraph of pure text ;-)
So I digged for a way to fetch the current position in music - these are 
only some hints for me to remember and perhaps for you to try:
--snip--
\version "2.12.3"

show = #(define-music-function (parser location name) (string?)
  (make-music 'ApplyContext
    'origin location
    'procedure
    (lambda (c)
            (let*
              ((cbn (ly:context-property c 'currentBarNumber))
               (cbn (if (not (number? cbn)) 0 cbn))
               (cmp (ly:context-property c 'measurePosition)))
              (display name)
              (display (format " Measure ~a at ~a/~a (~a/~a)\n"
                         cbn
                         (ly:moment-main-numerator cmp)
                         (ly:moment-main-denominator cmp)
                         (ly:moment-grace-numerator cmp)
                         (ly:moment-grace-denominator cmp)))
))))


music = #(define-music-function (parser location name) (string?)
  #{
    \relative c' {
      \show #$name s1*0 \show #$name c2. \show #$name r4 d \show #$name 
e \show #$name f
    }
#})

\score {
<<
    \music #"A"
    { s2. \music #"B" }
>>
}
--snip--
This simply prints out the current position in the music. The name 
string is for looking at the order of processing the music.

I will have another look on this later.

Best regards,
Jan-Peter


On 09.02.2011 22:38, Bertrand Bordage wrote:
> Thanks Jan-Peter !
>
> I agree with your idea of using asterisks instead of numbers when 
> annotating scores (but for text, numbers seems more elegant).
> For the moment, I will try to do LaTeX-like footnotes for markuplines.
>
> Indeed, this would be a good solution for now :
> - A column of footnotes on each page of markuplines
> - Endnotes for the musical parts. Maybe without any sign on the score, 
> but with a reference to the score name, the current bar number and the 
> instrument name in the list of endnotes, like in Ricordi's critical 
> notes. This will avoid the parallel music parsing issue. And it looks 
> sooo classy ;-)  (or boring)
>
> Then I'll have a deeper look on this parsing issue.
>
> Any help would be welcome :o)
>
> Regards,
> Bertrand