Local scheme variables used inside a Lilypond code block

[Paolo Prete]

Hello,

I try to re-post my previous question in a more generic way: is it possible to define local variables in a scheme function and use them in a lilypond code block?

Something like (pseudo-code: it doesn't compile):

func = #(define-music-function (parser location note) (ly:music) 

   ((mypitch (ly:music-property note 'pitch '()))

    (myduration (ly:music-property note 'duration '())))

#{ ....  $mypitch $myduration .....  #}  )

If not, is there a work-around to obtain that?