Atsuko Tanaka (1932-2005) and Akira Kanayama (1924-2005), were original members of the Osaka-based avant-garde group Gutai Art Association (and, later, husband and wife). Tanaka is best-known for her 1956 Electric Dress of colored lightbulbs and wires (shown in the biennial). Kanayama's has for example made watercolors and ink drawings in the early '50s, austere, presaging the minimalist painters' conceptual concerns.The biennial is showing his installation Traces. Pictures HERE.