A technophile's wet dream going beyond the limits of an encyclopedia or a record guide, here are essays by musicians and music journalists which illuminate genres techno, house, krautrock, disco, hip-hop, jungle, drum'n'bass, ambient and downtempo. Probing the conceptual origins of synthesised sound and including legendary names Kraftwerk, Giorgio Moroder, Robert Moog and John Cage, the black roots of electronic music are also documented, from free-jass traveller Sun Ra to funk inovators Parliament and Funkadelic. With sections on fusion, dub, post-punk, breakbeats+.