music-to-markup

[Urs Liska]

Hi all,

is it possible to take a music expression and print out its literal input?
In other words: Could I write a function "\example" that takes a music 
expression as an argument and that first outputs the input code as text 
and then as a score?

So that

\example {
  \relative c' {
    c8 d e
  }
}

would turn out the same as writing

\markup \typewriter \column {
  "\\relative c' {"
  "  c8 d e"
  "}"
}

\score {
  \relative c' {
    c8 d e f
  }
}

This would be cool for writing LilyPond usage examples where you can 
print the input and get the result from it. Unfortunately I don't have a 
clue whether or how this can be achieved.

Thanks for any hints
Urs