Yes - Yessongs Full Concert
"All around the world, same glorious song! I saw them live in 1972 and this brings back so many great acid soaked memories!"
(http://cbswzlx2.files.wordpress.com/2011/03/yes-live-in-1973.png?w=420)
Flash back, mang! - http://www.youtube.com/watch?v=KVrmwJbnK5w (http://www.youtube.com/watch?v=KVrmwJbnK5w)