Let me begin by introducing myself a bit. I am Aep, and I play viola (like a violin but not). Within this thread I have listed a few pieces of classical music that I have either played or have enjoyed listening to, one or two of which I consider among my favorite compositions. I hope you enjoy listening, and even if classical music isn't really your thing, I urge you to give it a try (though I acknowledge it is, for some people, an acquired taste)!
Symphony no. 5, Allegro non troppo - Dmitri Shostakovich
https://www.youtube.com/watch?v=YarFI7r2shY
Shostakovich wrote some insanely hard stuff, and this is certainly up there. He was a fan of using a constantly moving line, meaning very few rests and many time signature changes. Say what you will about the Russians, they had some kick-ass composers. The conductor here is Leonard Bernstein, who was quite the personality. Rest in peace. There's a good spot at ~7:50 if you should choose to skip ahead.
Bacchanale - Camille Saint-Saëns
https://www.youtube.com/watch?v=9XT72VAk1M0
Bacchanale has a more Middle-Eastern feel to it, which I am a big fan of. When I played this we did not have winds, which sounded much less... complete. The conductor, Gustavo Dudamel, has some great hair.
2nd Symphony in D Major, Mvt 4 - Sibelius (Good part at ~13:00)
https://www.youtube.com/watch?v=jY6b1DdSCwk
This piece has a very triumphant, jubilant sound to it at times. I didn't recognize it by name until we started rehearsing this one for our full orchestra rep, but it is easily one of my favorites. Again, Bernstein, being Bernstein.
1812 Overture (The one with cannons) - Tchaikovsky
https://www.youtube.com/watch?v=VbxgYlcNxE8
The 'cannon' theme (~12:00) is hinted at throughout the piece, but is otherwise not the triumphant, nationalistic tune I had associated it with as a kid. Tchaikovsky has my love eternally for his work.
Scheherezade (The Story of the Kalendar Prince) - Rimsky-Korsakov
https://www.youtube.com/watch?v=mg-kVzDAKxo
A slower one, I will admit. This was the very first piece I played with winds and strings in the same room (full orchestra) and has accordingly earned my love. There is something frightening about sitting fourth row viola and having five trumpets blast out a note from directly behind me, but it is also surprisingly satisfying. 8/10, would recommend.
Passacaglia - Handel-Halvorsen
https://www.youtube.com/watch?v=dZawzc8HJio
Itzhak, every violinist's Yo-Yo Ma and Pinchas Zukerman. The ultimate duo! I couldn't accurately tell you how many times I've listened to this one, but I can guarantee that it is at least five!
Thanks for listening! Submit your favorite music (classical or naw) below if you like.