"Untilted" is another fine installment in the Autechre canon.
While their music has been called chaotic by detractors, any electronic musician who has attempted to emulate Autechre's unique sound will tell you that their programming is fiendishly complex and very, very precise. Randomly programming beats into a drum machine will no more get you Autechre's sound than dribbling paint on canvas will get you a Jackson Pollock painting.
This stuff obviously isn't easy listening, but it isn't really esoteric, either. Autechre are simply exploring the physical properties of sound, especially those liminal points--so dispraised in popular music--where a sound moves across the traditionally policed categorical distinctions between melody, rhythm, and texture. We hear texture becoming rhythm and rhythm becoming melody. Hearing such music can be discomfiting because there are no functional parts to recognize ("Hey, where's the bass line?") but only particles of sound arranged into new constellations (just as in a Pollock painting representational space has been left well behind). Such discomfort, however, is only a precursor to the excitement of experiencing the world anew--free from the dull constraints of habit and expectation. Autechre makes new music, but, more importantly, they give us new ears for all music. They make music itself new.