invocation for the festival Sweetwater Bert Sommer Ravi Shankar Tim Hardin Melanie Arlo Guthrie Joan Baez Saturday, August 16 Quill Country Joe McDonald John Sebastian Santana Keef Hartley Band The Incredible String Band Canned Heat Mountain Grateful Dead Creedence Clearwater Revival Janis Joplin with The Kozmic Blues Band [25] Sly &