scheme function returning two scores

[Gianmaria Lari]

The following very simple code generate 4 scores: two layout scores and two midi scores.

\version "2.19.81"

music = {\repeat percent 2 {c' d' e' f'}}

\score { \music \layout{}}

\score { \unfoldRepeats \music \midi{}}

music = {\repeat percent 2 {g c' c' c'}}

\score { \music \layout{}}

\score { \unfoldRepeats \music \midi{}}

I would like to write the same more concisely like this:

\version "2.19.81"

myScore = #(define-scheme-function (music) (ly:music?) #{

  \score { $music \layout{} }

  \score { \unfoldRepeats $music \midi{}}

#})

\myScore {\repeat percent 2 {c' d' e' f'}}

\myScore {\repeat percent 2 {g c' c' c'}}

But I get the error

error: syntax error, unexpected \score, expecting end of input

\score { \unfoldRepeats $music \midi{}}

The issue is clear but I have no idea how I can fix it. Any suggestion?

Thank you, g.

P.S. Instead of returning two score, I tried myScore to return a "\book" containing two score but this also didn't work.