Double CD release of Alvin Lucier's four-part work, initiated in 1972 and recorded as presented here in 1983-84 and 2001. This reissues two long-out-of-print LPs on Lovely Music, released in 1983 and 1984, with four added parts (the strings) released for the first time. A series of mostly solo instrument works for the likes of: clarinet, marimba, viola, voice, xylophone, violin, flute, glockenspiel, cello, horn, and vibraphone. Performed by: Thomas Ridenour, William Winant, Dan Panner, Rebecca Armstrong, Conrad Harris, Susan Palma, Gregory Hesslink, and James de Corsey. An absolute masterpiece of "interference sound".