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)

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Sounds like Grand Piano: