Why doesn't this work?

[Roland Goretzki]

Hi,

using 2.10.20

I tried to define the following:

  blau = #(define-music-function (parser location Note) (ly:music?)
         #{ \tweak #'color #blue $Note #})

But it doesn't seem to work ...
Is there a mistake in the syntax or isn't it possible to define
music-functions including the "\tweak"?

Can somebody help me, please?

Best Regards           Roland