So, the glitch music was fine, for a couple of hours... Now I feel that I can't stand another minute of it.
A lot of long games suffer this syndrome, not enough music. I think one game solves this beautifully, portal 2. When doing certain actions, the player turns on and off different layers of music, this creates a sort of generative, infinite aspect of its form.
I think something like this should be implemented into glitch. Perhaps a kind of markov (google markov chains) labyrinth of chords could be running on the server and be influenced by the actions of the players, and on a local level the location, it's inhabitants and the user interactions could influence the music.
Sounds trippy I know, but a lot of this stuff is really simple to realize. If you want to make really blurry, abstract and soothing music for a game like glitch, then it's very simple to mask the fact that the music is algorithmically generated. By masked I mean that, it doesn't turn into cacaphonic contemporary classical music unless you want it to.
Here are some examples of how algorithmic music can sound:
http://veqtor.bandcamp.com/track/mosaic
http://veqtor.bandcamp.com/track/snowflakes
I imagine how an instrument could transform, a plucked instrument could go from an eastern-ish metallic sound to a more harp-like tone when going from a desert to a more southern european climate etc.
I don't know how much the game taxes the target systems right now, but I believe that at least some sound processing could be done alongside the gfx etc. Most games process audio anyway and I've seen some pretty nifty stuff being done in flash, see http://burn-studios.audiotool.com/ for an example of very impressive audio processing in flash!
Note: The music I posted was made by me, if the devs are interested I would really like to help develop this idea, I'm studying for a bachelors in computer science w. interactive sound design as my major.
No offense but I think this game needs something like this, the world is very interesting visually and mechanically but the music and audio in general is something lacking and that really shows in comparison to the rest of the game.
Keep up the good work!