Re: My first define-music-function, I'm trying, need help

[Rick Hansen (aka RickH)]

Anybody?



Rick Hansen (aka RickH) wrote:
> 
> The simple substitution example below should be pretty easy, but I'm "in a
> pickle", can someone show me how to replace the note name in the transpose
> statement with the note specified on the function call (parameter called
> "root")?
> 
> But it gets the following error:
> 
> <string>:2:13: error: syntax error, unexpected MUSIC_IDENTIFIER, expecting
> NOTENAME_PITCH or TONICNAME_PITCH
> \transpose c 
>              \lilyvartmpb { \relative { <c e g> } }
> 
> 
> <<<<<<<< EXAMPLE BEGIN
> 
> \version "2.11.4"
> \include "english.ly"
> 
> myChord = #(define-music-function (parser location root) (ly:music?)
> #{
> \transpose c $root { \relative { <c e g> } }
> #})
> 
>    \new Staff {
> 
>         % An A chord
>         %\transpose c a { \relative { <c e g> } }
> 
>         % Theoretically, this should also generate "an A chord" just like
> above
>         \myChord a
> 
>    }
> 
> 
> 
> <<<<<<<< EXAMPLE END
> 
> 
> 

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