The steel strings supporting the erhu should be one thick and one thin, with the thick string called the inner string and the thin string called the outer string (also called the auxiliary string). The inner and outer strings are tied to the corresponding piano shafts respectively, generally, the inner string is wound first, and then the outer string is wound.
In the process of using the bow, don't touch the bow hair with your hands, so as not to get oil stains on the bow hair for a long time and affect the performance. Once it is found that there is a lot of grease on the bow hair, which affects the performance, the bow can be removed, washed with soap in clear water, dried, and re-rubbed with rosin before use.
Every time you play the piano, you should relax the bow hair to make the bow return to its normal shape, otherwise it will deform the bow after a long time and affect the performance of the bow. If the bow doesn't need to be placed in the piano box for a long time, you can put some moth-proofing agents in the piano box to prevent the bow hair from being eaten by insects. ?
Extended data:
Hold the bow (wrong way to hold the bow):
1. The bow holding position is too close to the bow head or too close to the middle bow.
2. The bow is too deep into the bottom of the tiger's mouth, so that the bow is strangled in the tiger's mouth and cannot move flexibly.
3. When holding the bow, the fingers are so "drooping" that the bow rod presses against the piano barrel to generate friction, and the bow hair deviates upward from the piano barrel.
4. When playing the outer string, the middle finger and the ring finger are taken out from between the bow rod and the bow hair, and then extended when playing the inner string.
5. The thumb position is not correct when holding the bow.
6. When holding the bow, the middle finger extends too far, reaching between the bow shaft and the bow hair, which is useless inside and outside.
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