I learned classical piano. And this show offends and insults me, no one can compare. I won't even review the story because as a story that centered around classical music, no one in the production knows what classical music is. No one in the show can play instruments. It's not even a bad syncing, it's because THEY CAN'T PLAY. It is so bad that I can't get immersed in the story. Almost all dialogues about classical music is wrong. They just make up their own theory.
Simply put, this is insulting and offending. All musician, especially classical musician should not watch this.

Oh right, why do I put 9/10 for the music? Because they are great recording. Yes even if someone said they played one note wrong, nothing is wrong.