I went to see Queen in Woverhampton in about 1977. I got arrested that night. Long story!(Very minor offence)
At the time I was an avid Queen fan and particularly liked their earlier stuff, but they were a dissapointment live. Freddy couldn't hit the higher notes in Bohemian Rhapsody.
One of the best bands I saw live in that era was The Rod Stewart Band ( At least that was what it was called on the day). Excellent live.