Steve Harley and Cockney Rebel at the Guildhall, 1974.
Many more followed, from Camel and Pat Travers (at Monroes or whatever it was called then) to the Sex Pistols and the Damned at Woods to Genesis, Elton John, the Police, PiL, New Order, Simply Red and Kid Creole at Cornwall Coliseum.
Back in the day you could get tickets on the door on the night. The first time I couldn't get in was the Stranglers in 77 or 78, I was flabbergasted!