Alvin Lucier, the reigning techno-wizard of the avant garde, has devoted his musical career to the exploration of acoustical phenomena. Lucier got the idea for his newest recording, Clocker, in 1978: he wanted to make a work in which a performer could speed up and slow down time simply by thinking. The resulting piece, which took over 10 years to realize, is scored for a clock, galvanic skin response sensors taped to Lucier's fingers (which measures differences in skin resistance caused by changes in emotional state) and digital delay system. The version of Clocker on this compact disc was recorded by electronic composer Nicolas Collins in 1991 at Wesleyan University.