Anime with Moonlight Sonata?

Hey, I have a specific anime in mind where Beethoven's Moonlight Sonata is played that I'd like to watch again, but I can't remember the name.

I only have one scene in my head:

The mc is playing the piano, has glasses and black hair, and a girl with (I think) blonde hair comes up to him and listens.

It's a pretty intense romance anime that I watched on Netflix about a year or a year and a half ago. The Moonlight Sonata was the couple's favorite piece, and they met in a hall where they were (I think) having a piano competition in front of a very large audience. Both of them were participants.

Hope someone knows the anime.

Thanks in advance