Here is a 3D printed robotic hand that can play the piano by just moving its wrist. Developed by researchers at the University of Cambridge, the robot was made by using soft & rigid materials to replicate the bones and ligaments. This robotic hand can mimic different styles without having its mechanical properties changed.
The researchers programmed the robot to play a number of short musical phrases with clipped or smooth notes. By actuating the wrist, the researchers chose how the robot interacted with the piano.