Approximate Rhythms program notes [from the Centaur CD "Inner Voices"] Brad Garton's Approximate Rhythms grew from his fascination with drum machines, those amazing little boxes that have managed to collapse a drum set into a small collection of silicon chips. He used the sound sampling/playback capabilities of a "general purpose" computer to create his own version of a drum machine. The computer generated all of the rhythms using probabilities for drum hits to appear on different beats and he then mixed together patches of computer-generated rhythms to create the final piece. He writes, "Ever since the birth of my daughter, I have become increasingly concerned with the effects of our technological 'progress' on our world and on ourselves. I think that subtext can be heard pretty easily in the piece."