I have a midi preprocessor that is a drum tab like but csound like. I have ratchets, accelerations, decelerations, lfo rhythms that compile to midi. right now it is just tied to midi drum notes but I can pretty much do anything including writing a code generator to allow the user to define the midi notes in the future. I may also add nudging the note a certain amount as a command.
I am using a portable 3.1 with it.