How to tune the erhu?

Erhu can be tuned with the help of standard vocalists (whistle, tuning fork and tuner). When the pitch of the outer string is A (440HZ) of a set of standard sounds, it is 5(so) in the D key of the erhu. Tune the inner string in the same way. The inner string should be tuned to the D tone, that is, the 1(do) tone of the D tone of the erhu.

Second, fine-tune:

Select the mode of the electronic calibrator as "erhu sound calibration mode", put it near the erhu drum, and then pull the slow longbow of the outer string with relatively uniform force. The pointer will swing left and right on the instrument according to the slight change of sound. The pointer is between 0 and -50, and the red light is on, indicating that the sound is low; On the contrary, when the red light is on, it means the sound is high; When the pointer is in the middle of 0 and the green light is on, the pitch is accurate.

Extended data

1. The pronunciation of erhu depends not only on the bridge, but also on the quality of the wood of the bridge, the thickness and tightness of the membrane, the sunny weather, the humid, dry and warm air.

Erhu is made of wood, with one end wrapped in python skin and two metal strings. The inner chord and the outer chord are separated by a pure five-degree angle. Generally, the inner string is d 1 and the outer string is a 1. Its playing techniques are very rich, with strings (intonation), overtones, vibrato, glide and plucking in the left hand. The right hand has connected bow, divided bow, bow, jumping bow, trembling bow, flying bow and plucking bow.

3. The drum of the erhu vibrates the skin of the piano through the push-pull movement of the bow. The texture and shape of piano barrel have a direct impact on the volume and sound quality. Generally made of rosewood or mahogany. Shapes are hexagonal, octagonal, round, front octagonal and back round. Hexagons are commonly used.

Baidu encyclopedia-erhu