At the Time-Based Art Festival in Portland, from top: A collaboration by Seattleites Zoe Scofield and Juniper Shuey; Holcombe Waller; "Gatz" by Elevator Repair Service; and Nature Theater of Oklahoma...
Doris Totten Chase. Circles II [video still]. 1972. Single-channel video (color, with sound). Duration: 7:43 minutes. Image courtesy of Randall J. Chase