Some sort of ambient mebbee?
But it sounds pretty good, and that's what matters in the end, eh? While you seem to only have one of two short riffs throughout the entire song, you really keep it interesting by mixing up the instrumentation, rather smoothly too. The only thing I didn't quite like in this piece was the bass drum - feels too boomy and tends to draw too much attention to itself (which doesn't seem to fit the some equalitarian mantra of the rest of arrangment). Nice work overall, though.