Hi,
I'm trying to create some tools for setting choir pieces. I have run
against a problem where I have a music function that needs the result of
another music function. That other function uses a Lilypond code block, so
it takes both parser and location. For reasons I don't understand, I cannot
get this to work. Lilypond gives me a:
Wrong type to apply: #<Music function #<procedure #f (music)>>
I have tried to create a small toy example to show what I want to achieve:
rest-around = #(define-music-function (parser location music ) (ly:music?)
#{ r4 $music r4 #})
restful-choir = #(define-music-function (parser location music) (ly:music?)
(let ((rest-around (rest-around parser location music)))
#{
<<
\new Voice { \voiceOne \transpose c g $rest-framed }
\new Voice { \voiceTwo $rest-framed }
>>
#}))
music = { c' d' e' }
\score {
\new Staff { \restful-choir \music }
}
I have run into this problem a couple of times, the current problem I'm
trying to solve is: I have a list of music an I am trying to map each item
of the list with a function that creates a staff with the music. Afterwards
they should be combined as 'SimultaneousMusic. I would like to use Lilypond
code blocks where I think it is clearer than the Scheme counterpart.
Is there something obvious I am doing wrong, or am I perhaps completely off
on this approach...?
Best regards,
Morten
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