The sound of the piano:

Fingers strike the keys, and after the keys are struck, the linkage rod drives the string striking machine. At the end of the rapping machine, there is an oval hammer wrapped in wool felt, which is called rapping hammer. Driven by the string hammer, there will be an action of lifting first and then hitting forward, and the front end of the string hammer is a steel wire. When the hammer strikes forward, it will hit the steel wire accurately, and the steel wire will vibrate and make a sound.

Extended data:

The correct hand type for playing the piano should be:

1, put your hand on the piano, arch your palm, separate your fingers, let your fingers droop naturally, and touch the hundred keys with your fingertips, so that your whole hand is semicircular;

2, two, three, four, five fingers touch the key parts should be the fingertips, but I don't know it is the stomach; The thumb is the external touch key of the fingertip;

3, the back of the hand should be balanced, not inclined to the direction of the little finger; Feel close to your thumb;

4. Keep the semicircle shape of your hand when you play. Your fingers should not be stretched too straight or too bent. The first joint of your finger must be straight.

5. When you play, you should always trim your nails to ensure the standard of hand shape.