The most important thing in learning to change the handle is to find out the idea of changing the handle of different modes. The key is to grasp the two relationships, one is conduction and one is stability.

Two relationships: the relationship between the running fingers and the strings, and the relationship between the running tiger's mouth and the piano rod.

1. The relationship between the running fingers and the strings in the erhu changer is to brush the strings, not to squeeze the strings, and not to hold them to death. Except for the use of glissando and glissando in the stylistic technique in the music, the fingers should be kept in a state of brushing the strings. The word rubbing referred to here cannot be heard by the ear during erhu performance, and can only be displayed in the reflection of the instrument. Establishing such a concept can maintain the slack of the fingers when changing the handle, and give full play to its greater independence and efficiency. elasticity.

2. The relationship between the tiger's mouth and the erhu rod is to brush the rod, not to hold the rod and press the rod. A relaxed playing state can only be found if there is no pressure or pressure. In addition, it should be pointed out that (1) the change mode of opening the tiger's mouth and then restoring or changing the contact point between the tiger's mouth and the piano bar can only increase the excess movement in the speed change, create resistance to the change, and delay the fastest arrival time of the change. . ②The contact surface between the tiger's mouth and the piano rod should be rubbed between the tiger's mouth and the piano rod. This rubbing is a virtual rub rather than a dead rub. The hanging tiger's mouth uses the base joint of the index finger and the joint of the big finger as the fulcrum. Nominally, it "reduces" the friction of the tiger's mouth. In essence, the fingers become the fulcrum of the operating force, which increases the running burden of the fingers and makes the fingers move. Stiff and unable to complete the speed command.

A conduction: refers to the conduction of force.

The main console for force transmission in the handlebar is dispatched by the coordinated movements of the left forearm, left elbow and forearm, and is represented by the up and down movements of the left elbow and forearm in terms of specific behavior. The tiger's mouth is the fulcrum of the handle, not the finger. It turns the erhu string into a wide stage, making the fingers on the string like the toes of a dancer running on the platform, light and elastic. The finger is the end point of the movement force, not the fulcrum of the movement force. In the process of touching the string, there is a force transmission, but after reaching the string position, it is relaxed. Only in this way can the fingers in the finger movement be loosened. in the best condition.

A stable: finger-type stability.

In the process of changing the handle, the hand shape should be kept in a semi-grip-like sounding hand shape. Especially in the traditional positioning operation of four fingers for one finger and one finger for four fingers, one finger for three fingers, three fingers for one finger, three two one three two one, four three two four four three two four. In the non-traditional finger movement, it is more important to pay attention to the stability of the hand shape. The fingers of the operating hand type should be opened during the operation of the handlebars, and should not be bunched together, so as to create conditions for the independence of the fingers. The stability of the hand shape is the basis for quick change of the handle. Changing the hand shape for a certain finger can only delay the time for the fingers to be in place, and the result is that the rhythm is not smooth or interrupted.