Double CD release of a four-part work, initiated in 1973 and recorded as presented here in 1983–1984 and 2001. This reissues two long-out-of-print LPs on Lovely, with four added parts (the strings) released for the first time. A series of mostly solo instrument, performed by Thomas Ridenour, William Winant, Dan Panner, Rebecca Armstrong, Conrad Harris, Susan Palma, Gregory Hesslink, James de Corsey. An absolute masterpiece of “interference sound.”