Time Records 58009 (mono) and S/8009 (stereo) (LP) Cartridge Music/ John Cage. Duo for violinist and pianist; Duet II for horn and piano; Summer for string quartet/ Christian Wolff

Side A:
John Cage: Cartridge Music (1960)

Side B:
Christian Wolff: Duo for violinist and pianist (1961)
Christian Wolff: Summer for string quartet (1961)
Christian Wolff: Duet II for horn and piano (1961)

John Cage and David Tudor, cartridges and contact microphones (Cage); Kenji Kobayashi, violin. David Tudor, piano (Duo); Howard Hillyer, horn. David Tudor, piano (Duet II); Matthew Raimondi, Kenji Kobayashi, violins. Walter Trampler, viola. David Soyer, cello (Summer).

Recording details and locations not mentioned. This recording includes 4 simultaneous multi-tracked performances of Cartridge Music,
Re-released in 1970 on LP Mainstream MS-5015 and (Cage and other works) in 1968 on LP ICA 02
This LP released in 1962.

Sources: New York Public Library Catalog and Paul van Emmerik: Diskographie in "John Cage - Musik-Konzepte Sonderband II". Additional information provided by Tom Hall.