Vibrato often brings personal hobbies in erhu performance, such as; some people are used to vibrating more deeply; some people are used to vibrating more beautifully; some people are more excited; some people are good at changing, and so on. But no matter what style it embodies, the most important principle of vibrato is to use it properly and in the right proportions, so that the erhu performance can have irresistible artistic charm. The special functions and common problems of Erhu vibrato

The main deviations that students are prone to in learning to vibrato are as follows:

①The movements are tense and stiff when rolling. The uncoordinated coordination of various parts is mainly manifested in: the arm movement is too large and the movement is too active; the wrist is not loose and does not play the role of "axis", the fingers are stiff, the first joint cannot freely perform flexion and extension movements, the inside and outside of the palm Fanning, over-fingered string picking, etc.

②The tiger's mouth moves when vibrating, which affects the stability of vibrating. The tiger's mouth is the fulcrum of the vibrato movement and must be kept stable.

③ The relationship between the vibrato and the pitch is not well grasped, or the vibrato affects the pitch, or the vibrato cannot be used to correct the error of the finger position, and so on.

④ The movement is not loose when sliding, or the center line of the sliding is not well grasped, which affects the pitch; or the sliding range is not appropriate; or the sliding is fast or slow, the frequency is uneven, etc., so that the sliding and rubbing should not be shown. Effect.

⑤ There are too many string-pulling components when pressing and kneading, which makes the pronunciation tense and affects the smooth running of the melody.

⑥ The kneading technique is poor and lacks change.

To sum up, the erhu is a representative musical instrument among the national musical instruments. In order to make the erhu play with a strong charm, it is necessary to constantly master various techniques, and vibrato is a powerful means of expressing emotions. The player can only impress and influence others through the vibrating music with the imagination, passion and emotion inspired by the music.