Compact discs; analog recordings. In 3 containers, in slipcase. Previously released in 1961 (CD 1 and 2) and 1970 (CD 3) on LP. Recorded between 1960 and 1973. Various performers. "Earle Brown's Contemporary sound series : an essay / by D.J. Hoek in English with German and French translations, and bibliography (25 p. : ill., port. ; 13 cm.) inserted in slipcase; original liner notes in English, with addenda ([36] p. : ill ; 13 cm.) inserted in container.