2018-01-13 3:30 GMT+01:00 Pierre-Luc Gauthier <p.luc.gauth...@gmail.com>:
> Hi there,
>
> Is there a way to pass a \header block as an argument to a scheme function?
>
> I have not found the correct predicate for it and get the following error :
> Expecting music, found #<module 7f2e875c7cc0>
>
> I did read and tried stuff based on :
> http://lilypond.org/doc/v2.19/Documentation/notation/predefined-type-predicates.en.html
>
> 'P.S. is my MWE.
>
> Thanks for any pointers
> --
> Pierre-Luc Gauthier
>
> %%%%%%%%%%%%%%%%%
> \version "2.21.0"
>
> headerA = \header {piece = "header A"}
> headerB = \header {piece = "header B"}
>
> scoreFunc = #
> (define-scheme-function
> (header content) (ly:music? ly:music?)
As the error-message states, don't ask for ly:muisc? but for module?
Cheers,
Harm
> #{
> \score {
> $content
> \layout {}
> $header
> }
> #})
>
> \book {
> \bookOutputSuffix "headeredBook"
> \scoreFunc \headerA {c'4 d' e' f'}
> \scoreFunc \headerB {c''4 b' a' g'}
> }
>
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