CBS P 10-15380 (LP)

Listen. Side 19

Arnold Schönberg: Piano concerto Op.42
Béla Bartók: 2 parts from 'Music for strings, percussion and celesta'
Charles Ives: The Unanswered Question
John Cage: Aria and Fontana Mix (ending) (1958/1958)

Glenn Gould, piano (Schönberg); CBC Symphony Orchestra. Robert Craft, conductor (Schönberg). BBC Symphony Orchestra. Pierre Boulez, conductor (Bartók). Zimbler Sinfonietta. Lukas Foss, conductor (Ives). Cathy Berberian, soprano (Cage).

Recording details unknown (mono)
LP released in 1980

Source: University of Washington Library Catalog