I recently rewatched Hunter x Hunter, and one thing that caught my attention which I didn't notice the first time around is that in a few episodes in the beginning of the Auction Arc (around episode 38 or 40), Chopin's 'Heroic' Polonaise plays in the backround for a few minutes. I was pleasantly surprised by this as Chopin is one of my favorite composers. I tried to think of other instances of classical music in anime, but couldn't think of any.
Are there any instances you can think of?
Are there any instances you can think of?