Memphis by Mother McCree's Uptown Jug Champions recorded at the Top of the Tangent Coffee House in Palo Alto sometime duing July of 1964.
The video was made by Sets in Order, a magazine devoted to square dancing, to reach new audiences. I just liked it and thought it was sorta trippy (well, at any rate, it made me a little dizzy...) The original video had a narrator, but I silenced him. If you really dig square dancing though, I guess you could watch the entire thing at archive.org.