Yes was so incredible that night, can't believe it was nearly 50 years Ago. Black Sabbath and other Assholes in the crowd Freaked me Out that night, when I got Home I broke All my Black sabbath albums & went out & bought Yes Music!
Just a few notes on this most amazing concert. They played two nights (Fri-Sat) and BLEW black Sabbath out of Winterland. I sat right behind the stage four rows over Wakemans shoulder and caught the full affect this entire show had over everyone. People were Amazed that a rock group could do a live show like this and actually be great at it. We stay for Black Sabbaths first two songs, but by that over half the crowd had left. Same thing on Sat night. Six months later in Berkeley they had no problem selling out for their follow up concert after making Close to the Edge
I think I can help with is the appearance of Yes in SF during the Fragile tour.
They did appear with Black Sabbath but it occured on March 10, 1972. I happen to collect tapes by both groups so I can give a reason or two as to why this didn't happen on 11/10/71.
I have had both the Sabbath and Yes sets on tape for years as 3/10/72, the Yes set is clearly an early '72 performance, demonstrated by many things not least of all Squire's long bass solo on The Fish, which he doesn't play that way in late '71 from any tape I have.
Sabbath performed "Tomorrow''s Dream, which was never performed before 1972, the tape indeed does open with Bill Graham's warning about the presence of police. Both bands perform in absolutely brilliant fashion! What a show!
Incredible show. Yes was the second band and Black Sabbath headlined, the opening act was a band called Wild Turkey.
Yes opened for Black Sabbath; talk about two completely opposite styles! I had gone to see Black Sabbath that night and was moved by this band called Yes from whom I'd only heard Roundabout. They were good. The Squire and Wakeman capes were a new feature to me, and the music was excellent. I'd never heard Heart of the Sunrise but was captivated by it.
Conversely, Black Sabbath was totally lame; Ozzie Osbourne continually leapt about the stage giving peace signs and then singing terribly and their drummer couldn't keep a tempo.
Jon Anderson announced during that night that their equiptment had been stolen at some point before the show and that they were playing on rented equiptment. It was offered as an excuse (as I recall) as to why they didn't sound as good as they might have. I've never heard anything more about this incident and have often wondered if anyone else has.