Detroit techno began with Juan Atkins and Rik Davis -- a young Funkadelic fan and a Vietnam veteran into the futurist writings of Alvin Toffler. Their first single, "Alleys of Your Mind," mapped the inner city onto inner space; their second, "Cosmic Cars," went offworld. By "Clear," their fusion of Kraftwerk, Giorgio Moroder and Motor City funk made it plain that a new era had dawned. Their debut album came out on the jazz label Fantasy, of all places -- an early sign of how far Detroit techno would spread. This 30th-anniversary reissue adds a few bonus tracks and is totally essential.