My projects, Scheme For Max and Scheme for Pure Data, use the same Scheme as Common Music (s7 Scheme) so you can use it to run Common Music code in Max or Pd. Taube's book "Notes from the Metalevel" on Common Music is really great, though sadly, now out of print.

I've played with a lot of languages for music, including the ones you mention, and for my tastes, Scheme is the loveliest. Eventually I plan to play more with Extempore too.