When I hear the word concert, I still think of classical (out of date, I suppose).
Truly Memorable concerts that I have been involved in; played by the orchestra I ran at the time:
St Luke's:
1984 Semele. part of the Handel opera Series at Carnegie Hall; Sam Ramey, Marilyn Horne and Kathy
Battle in her coming out party...a frenzied, hysterical, Italianate audience, screaming.
1987 Nixon in China, opening night in BAM, John Adams/Peter Sellers magnificent work: a triumph.
Last summer: Orchestra of St Luke's at Caramoor...a brilliant, moving reading of Fidelio conducted by Pablo Herrera-Casado, one of the new generation of amazingly gifted conductors...tears at the end.
And one I actually conducted: an all Baroque concert, our first season at Caramoor, must have been 1980. In those days there was only cover for the sides and the largest part of the audience was unprotected. As we started the Bach 1st Suite, it started to pour, so I invited the audience on stage and they congregated right with us and around the columns...and we all had a cooking, good time, the group really finding all the excitement in the overture and the refinement of the dance sections...a blast for what was (in those days) a bunch of really gifted kids.