This is something very cool. An interface to a sound generator that produces output by looping indefinitely the loop -construction that you give it, pushing the result of the logical equation for every point of T in the equation directly to the sound device on a Linux/Unix based system, thus resulting in producing output that can evolve over time and evolve some interesting sounding logical progressions of the sounds.
Check out the cool video by Viznut with visualization of the sounds also:
This is a very nice example of generative music: Chaos Cover
I played around too: