In guzheng playing, the fingers are the main moving parts. So, how should we control our fingers?
The muscles that control the movement of the fingers should be rapidly contracted and the extensor muscles should be rapidly relaxed at the moment when the string is played. After completing the playing movement, the flexors and extensors relax at the same time, but maintain a certain degree of tension (constant tension) for the next playing movement. Hand muscles have been in this infinite repetition of tension and relaxation throughout the performance.
When plucking the strings, you should master the method of finger movement based on the movement of the finger joints driven by the metacarpophalangeal joints. The fingertips should be flexible and active. The chord point of each finger should be basically kept on a line parallel to the front beam, and the hand shape should always be a diffuse round shape. The knuckles and metacarpophalangeal joints should not collapse, otherwise the arm strength cannot be directly delivered to the fingertips. The fingers that are not playing should droop naturally, do not lift up, and some people will lift the little fingers up unconsciously, which is caused by the tension of the little finger muscles. It is not aesthetically pleasing and affects the relaxation and exertion of other fingers.
When playing, you need to train the explosive power of your fingertips at the moment of playing. When playing lyrical slow music, although the finger movements are relatively slow, pay attention to the explosive power of the fingers when they touch the strings. Compared with the former, the latter only differs in the magnitude of the explosive force. Even if you use the method of holding the strings, you cannot use your fingertips to wipe the strings lightly, otherwise the sound will be weak and weak, and it will not give people a clear and transparent feeling.