My concerts read like a Who's Who of the 70's.
The first was Blood Sweat & Tears, I believe during David Clayton Thomas' 2nd run with the band. I was barely in High School & my parents let me go but were afraid to. It worked out fine, so they were OK with more.
Then came, not necessarily in order:
James Taylor
Led Zeppelin
Def Leppard
Gordon Lightfoot
Lynyrd Sknyrd - right before the plane crash that killed some of them.
The Who - right before Keith Moon died. Are you starting to see a pattern here?
There were others, but that's all I can remember off the top of my head. For some reason as soon as I was out of High School & on my own, the concerts stopped. Couldn't afford them.
Boy am I dating myself with that list!