re: Best concert you ever attended?

My problem answering your question is that I want to answer it in several ways.

The most amazing live act I ever saw was Deep Purple when it was Blackmore, Gillan, Lord, Paice and Glover. Every song they played was familiar, but at the same time unique. The songs were played according to a predetermined structure, but all of the solos were extemporaneous, and lasted as long as the soloist wanted. If you watch YouTube videos, or listen to live recordings, of them you will notice that the song lengths were never the same, and they could vary drastically.

The best concert I attended was a Day on the Green at the Oakland Coliseum. It was Peter Frampton, Fleetwood Mac, Gary Wright and UFO. Musically, it was not the best, but it was the best because of the people I was with and the atmosphere.

The best concert I saw for musicianship in a club is a toss up. Nils Lofgren at the Old Waldorf and Roy Buchanan at the Great American Music Hall. The best concerts for having a good time were seeing Mojo Nixon and Dash Rip Rock on several occasions.