I saw them too! One of the best concerts I ever attended..............Brain Salad Surgery Tour!...............
I saw them during their tour in support of Works. Or rather, it started as that. Turns out, it costs a fortune to tour with a full orchestra, especially when the venues aren’t full. They did Tarkus in entire (I’m more of a Trilogy guy), and pretty much had to do “Fanfare for the Common Man”, using the recording of the intro. We were so close, we could see E and L exchanging “what have we become” looks as they stood there while the tape rolled.
Saw ELP in Spokane, Brain Salad Surgery tour. Incredible! Had to have been before 1976, that’s when I graduated from Gonzaga.