How to play the notes of 4 and 7 on the guzheng?

Guzheng is a classical musical instrument in China, and Chinese classical music uses five tones.

It means "1, 2, 3, 5, 6" without 4 and 7.

On the guzheng, 4 is the string of 3, and the left hand presses the left mountain on the string of 3;

7 is a string of 6, and the left hand is the same as above.

4 and 7 are hard to find.

Because no matter what kind of sound it is, pressing it with your left hand will set the sound to rise.

The degree of pressing directly affects the scale.

Take your time.