First, you stole my thread title, LOL.
https://forum.audiogon.com/discussions/it-was-20-years-ago-today
Second, my memory is shot from a mis spent youth, but I can still remember certain concerts with crystal clarity, the last time that I saw Rashaan Roland Kirk, after the stroke, comes to mind. I can even see one of the pillars at the Vanguard that night that partially obstructed my view of the bass player. Memory is a funny, very selective, thing.