So what is the earliest concert you can remember going to

Forgot, around 1975 saw Santana at some coliseum in Richmond Va. somebody else was there too but can’t remember, bad part I was really getting deaf by then. I have tons of the old albums and can’t listen to any no more, hearing aids distort the music so bad, a shame. IMO after 80 the music tapered off big time, occasionally a good one popped up. late 60s mid 70s the high point.