1968
1968 - March 9-10. Supersystems. Halls and annexes, Ryerson Theatre. Ryerson Institute. University of Toronto. Toronto, CA.

Work(s): Unknown “supersystems” by MN, Udo Kasemets, Les Levine, John Giorno. N.B. Promotional poster for exhibition Sight Sound Systems (reunion of Marcel Duchamp and John Cage) of which Supersystems event was a part: “Punch computer cards, make your own music and participate in the manifold sounds, sights and smells.” Likely Max Feed.