This thread is a few of my favorites that I would recommend to get started.
But note there's a million directions you can go with all of this.
This 1981 recording of the Goldberg Variations by Glenn Gould is equally renowned.
Mozart died while writing this. It is some heavy shit.
This movement in particular, the slow movement from Beethoven 7, is beyond words for me.
This was the last piece he ever recorded before he died. It was a rainy day at Tanglewood and my 15-year-old ass was there. Intense.
The end of this is the greatest thing ever even dreamed of by a human.
This recording is the famous Juilliard Quarter performing Bartok String Quartet No. 4 in 1963.
The oboe solo that starts just after 7:20 is one of my favorite solos in all of orchestral music.
Here's a young-ish Bernstein conducting.
Dvorak Serenade for Wind Instruments, Cello and Bass in D Minor
Empire Brass In Japan (Live at Hitomi Commemoration Auditorium, 1986):
I performed with her earlier this month at the Kennedy Center Honors. I'm sure she added me to her bio afterwards just like I immediately added hers...
This was the piece that played over the PA during the Time Machine gag on 12/31/95.
No one around me seemed as excited about that as me.
The Kronos Quartet plays the shit out of it.