The source material for every piece on Playthroughs is guitar: acoustic, electric or otherwise. From Sept. 2001 to April 2002. Keith Fullerton Whitman transformed raw guitar tones via laptop computer into the tracks on Playthroughs. Whitman has used ring modulators, granular re-synthesis algorithms, banks of delays and special effects in a process that owes much to Terry Riley's Time Lag Accumulator setup and Steve Reich's Phase Pieces. Technology and Whitman's careful selection of notes combine to create shimmering drones and deep waves of sound. Though the source material was improvised guitar and the procesing involved computer technology, Playthroughs reflects Whitman's mastery of composition.