I think the experiences that we have when we are in our teenage years are the most intense and we spend our later years trying to recreate that feeling.
In pop music, the most memorable I ever had was hearing Bob Seeger at a high school gym around 1971, when I was 13. Seeger had a hit a few years before (Rambling Gambling Man) and the Detroit radio stations would play all his music, but he must have been at a career nadir and unsuccessful outside the Detroit area (before he hit it big a few years later). It was probably my first concert by a “known” musician and he had us screaming our lungs out.
A few years later I had gone deeply into Classical Music. I heardBartok Music For Strings, Percussion and Celesta in concert and the great first movement had me shaking because it was so intense. Shortly afterwards I heard Gary Graffman play Beethoven last Piano Sonata, Op.111. The last movement has always , starting with that concert, struck me as a person in communication with God, who is explaining all of the secrets of life. I still listen to that piece afraid to breathe, even to a recording, for 20 minutes, for fear of missing a detail.