I can't remember this movie clearly, so if someone wants to help, please help

In short, it was about a pianist who has an important concert. During his concert, a man threatens him to play the exact melody on the piano in order to unlock what is in the piano. A pianist tries to hold a concert and at the same time save his loved ones from a murderer. (I remember the scene where at the same time he played the piano live and wrote to the other that he was in danger, but the latter did not believe him)


Sounds like Grand Piano: