Artists
Album Info
Release Date: 1971Label: Deutsche Grammophon
This album originally released in the Avant Garde Vol.4 box set.Side A recorded in Grosser Saal des Musikvereins in Wien, March 1970. Written 1967.
Side B recorded in Saal der Philharmonie Ljubljana, 21 October 1970. Written 1968.
The sides are labelled 5 and 6.