My first ever gig was UFO at the Odeon in 1980 when I was 15. Great stuff.
For a few years at that time I was totally into heavy rock and I went to see some of the classic rock bands of the time as they almost all played Edinburgh when they were touring. So I saw the likes of Rainbow, Thin Lizzy (several times), Judas Priest, Black sabbath (with a fledgling Iron Maiden supporting), Saxon, Rush (several times), Michael Schenker Group etc. Even though I kind of grew out of all that and got into loads of other music, I still like to this day many of those bands. Heavy Metal was a bit of an outlet for me at that time.