I don't know if this fits the bill exactly, but I've been dying to have time to play around with Overtone[1] and Emacs Live[2]! [1]: http://overtone.github.io

I don't know if this fits the bill exactly, but I've been dying to have time to play around with Overtone[1] and Emacs Live[2]! [1]: http://overtone.github.io http://overtone.github.io [2]: http://overtone.github.io/emacs-live/ http://overtone.github.io/emacs-live/