I think it was a BL Quick transmigration story, but I'm not sure. It has a scene where the MC is a music prodigy, who was contracted to make the music for a murder mystery movie. He played the violin in place of the actor as the crazy murderer. It was like the violin sound was coming from all over the place, as the female detective actor was standing there feeling afraid. Very haunting. I can't remember what story this is from, but I'd like to re-read it again.
Probably this https://www.novelupdates.com/series/my-husband-is-suffering-from-a-terminal-illness/ i dont remember which chapter it was but i'm very sure this is it. my fudge hands cant type after napping Uhhhh its not a qt novel but it is one of the scenes since its an entertainment novel