Alright, I'll jump in
Since I'm old enough to have began attending concerts since 1969 and fortunate to lived my life in New York City, I've certainly seen my share of, in retrospect, many classic performances.
I've seen The Beatles in concert-not together as a group, but all members individually.And all of those concerts were in Madison Square Garden
Paul McCartney-I saw Wings at the Garden but I don't recall which year or which album they were supporting.
George Harrison-I saw George circa 1974 when he was on tour for that year's Dark Horse album. Ravi Shankar was the opening set with his request that no one smoked during his appearance. Yeah,sure, like the audience was going to comply
Ringo Starr-Ringo played drums for that Harrison concert
John Lennon-At the time I didn't know Lennon would only headline a concert less times then the fingers on your hand. This was the One-To-One benefit concert he gave on Aug 30, 1972. I saw the early afternoon show, one of two shows he gave that day only
Opening acts included Stevie Wonder and Roberta Flack. John's backup band was a ragtag local barband called Elephant's Memory. The show was hosted by TV newsman Geraldo Rivera. Johns set list for that show:
Power to the People
New York City
It's So Hard
Move on Fast
Woman Is the ****** of the World
Sisters, O Sisters
Well Well Well
Born in a Prison
Instant Karma!
Mother
We're All Water
Come Together
Imagine
Hirake
Cold Turkey
Don't Worry Kyoko (Mummy's Only Looking for Her Hand in the Snow)
Hound Dog
Give Peace a Chance
My recollection: Amazed with Stevie Wonder's brief set and how he was led from piano to front stage to drum set as he played various instruments. Cringing during Yoko's obligatory solo song. Hoping John would do a few more Beatles numbers beside Come Together. Observing how under-rehearsed the John's performance seemed. Blinded by the sun when exiting Madison Square Garden at approximately 5 P.M. (leaving a concert when still broad daylight is so unnatural)
All those concerts were when the ex-Beatles were very reticent in playing songs from their former partnership. You felt they were throwing you a bone when they complied with one or two.
I'll post some other highlights of my concert experiences later