Amazing, thank you!
чт, 2 апр. 2020 г. в 01:12, Aaron Hill <lilyp...@hillvisions.com>:
> On 2020-04-01 3:04 pm, Павел Буданов wrote:
> > Hello, I'm newbie in scheme. I want to write simple function to
> > octavize
> > melody, but something doesn't works...
> >
> >
> > \version "2.20.0"
> > octavize = #(define-music-function
> > (parser location music) (ly:music?)
> > #{ << #music \transpose c c' #music >> #})
> >
> > music = { c' d' e' f' }
> >
> > \markup "Need:"
> > \new Voice { << \music \transpose c c' \music >> }
> > \markup "Got:"
> > \new Voice { \octavize \music }
>
> This is a case where the $ is needed over #. The \transpose ... #music
> is changing the value which affects both usage of #music. Using $music
> in place of either (or both) #music should fix the issue.
>
> Also, parser and location are no longer required to be specified as
> arguments, so you can shorten up the function definition a bit.
>
>
> -- Aaron Hill
>
>
