Re: Problems with music-function for shortcut for \relative command

[Urs Liska]

Am 16.12.2014 00:22, schrieb Hans Sommer:
> Urs Liska <ul <at> openlilylib.org> writes:
>
> >      It's define-music-function,
> >          not "define-music function"
> >          HTH
> >          Urs
> >      Am 15.12.2014 23:56, schrieb Hans
> >        Sommer:
> >
> >      
> >        Hello,
> >
> > Ich wrote a scheme function for getting a shortcut for the \relative command.
>
> Hello Urs,
>
> in my function I used define-music-function ( the - got lost during copy&paste).
> The error locates also the error at line 46 in addons.ly (thats where the
> function definition is located).
>
> My question is: why does lilypond expect music when I put ly:pitch? as the
> predicate?
>
>
>
> rel = #(define-music-function
>                                      
>       (parser location p notes)
>                                      
>       (ly:pitch? ly:music?)
>     #{
>    \relative #p  #notes
>
>     #})

I'm quite sure that this function is OK, as the following complete file 
(i.e. without any includes/library) compiles wihtout errors on 2.18.2 
and 2.19.6.

\version "2.18.2"

rel =
#(define-music-function (parser location p notes)
     (ly:pitch? ly:music?)
   #{
     \relative #p  #notes
   #})

myscore = {
  \rel c' {f4 g a b }
}

\score {
  \myscore
}

I assume the problem lies somewhere else in your infrastructure.

HTH
Urs