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Writing score definition in Scheme


From: Urs Liska
Subject: Writing score definition in Scheme
Date: Mon, 26 Mar 2018 14:51:30 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

Hi all,

I'm embarrassed to admit I don't know where to start looking in the manuals.

I have a scheme-function that returns a \score expression, and I'm sure I wouldn't have to hop around between LilyPond and Scheme syntax like this:

make-score =
#(define-scheme-function (movement-path)(symbol-list?)
   #{
     \score {
       <<
         \new GrandStaff <<
           #(get-staff movement-path 'clarino-one)
           #(get-staff movement-path 'clarino-two)
           #(get-staff movement-path 'corno-one)
           #(get-staff movement-path 'corno-two)
         >>

         #(get-staff movement-path 'tympano)

         \new ChoirStaff <<
           #(get-staff movement-path 'soprano)
           #(get-staff movement-path 'alto)
           #(get-staff movement-path 'tenor)
           #(get-staff movement-path 'bass)
         >>
         \new StaffGroup <<
           \new GrandStaff <<
             #(get-staff movement-path 'violin-one)
             #(get-staff movement-path 'violin-two)
             #(get-staff movement-path 'viola)
           >>
           #(get-staff movement-path 'bc)
         >>
       >>
       \midi {}
       \layout {}
     }
   #})


The function is also called from within Scheme code, so I would like to write the same using Scheme only, without switching to LilyPond with #{ #} but also back to Scheme within these expressions.

How would I go about this and/or where would I look up the reference for this?

Thanks
Urs



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