Avant garde series. Back cover features notes in German and English and French. Originally part of 6-LP Avantgarde Vol. 2 boxset (1969) & available separately with different catalog# 137 009. Atlas Eclipticalis (1961-62) + Winter Music (1957) controlled by Cartridge Music (1960) recorded at Hilversum, Phonogram-Studio. The role of "assistant to the conductor" involves controll of contact microphones fitted on the instruments Glossolalie (Definition 1959-60, Version 1961) recorded at Köln, Electrola-Studio. Vinyl is VG+.
