I think it must be YES, didn't they used to do "In The Round" stage shows,
So that would be Jon Anderson in the centre raised circle, Steve Howe
playing a Gibson ES-175 hollow body with the cutaway, I'm not so up on my
years and rosters with Yes, so that's probably whoever was drumming on that
tour obscured on the left , and on the right there's a keyboard station but
I can't make out who's manning them (Moraz? Wakeman even?) and you can see
on the other side of the stage, facing away, the probable bass player most
likely Chris Squire.