The fertile sonic imagination of Autechre wanders through the digital wilderness on Draft 7.30 , burying understated melodies with dense noise from the avant-garde fringe. Since their more mainstream dance beginnings, Autechre’s Rob Brown and Sean Booth have operated in the same non-rhythmic, wired turf occupied by Oval , Plaid , and other experimental techno artists. But they’ve always retained an echo of their earlier accessibility, using recurring themes that give their music a Boards of Canada -like elegance. On the other hand, recent work like 2001’s Confield has involved a more cerebral mix of order and chaos that lacks such carbon-based ballast. Draft 7.30 goes even further off into the land of 1s and 0s, manipulating theories and formulas with a fascination usually reserved for higher math classes. Your ability to listen and enjoy will depend on your tolerance for difficult concepts and willingness to embrace chaos. --Matthew Cooke