The strings of the erhu are one of the important components of the erhu, and daily maintenance is extremely important.

[1] After every time playing the piano, wipe the sweat and rosin on the strings with a cotton cloth in time, because the slightly inferior strings will rust quickly, and the rusted strings will affect the pronunciation of the erhu; The pure fifth of the string is very accurate, but when the outer string is pressed to the middle octave of the string, the same finger tone will be slightly lower, which is the reduction of the vibration frequency of the string caused by the dirty or rusted string. Strings like this are about to be replaced.

[2] In general, you should develop the habit of rubbing rosin before pulling the erhu to ensure that the bow hair is white, but you can't rub it too much. If you rub too much, it will make noise. The pronunciation of the erhu is that the vibration frequency generated by the friction between the bow hair and the strings is transmitted to the piano code, so that the piano skin and the piano barrel resonate and sound. If the bow hair lacks rosin for a long time, the strings will lack friction. The sound is weakened, and the bow hairs and strings are worn out over time.

[3] The friction between the strings and the bow hairs is reduced, and the sound of the erhu is weakened, because its amplitude is small. If you wipe the rosin but feel slippery when you draw the bow, you will not be able to achieve the loudness without applying force. This requires Replaced bow hairs and strings. The quality and frequency of use and maintenance of the strings determine the life of the strings, and whether to replace the new strings and bow hair should be determined by hearing and feel. Clean the erhu strings, stem, barrel and skin of the erhu in time every time you finish playing the violin. Another is to look at the quality of the strings when purchasing strings. The material and processing of the metal strings determine the quality of the strings. There are many low-priced strings that are almost inferior, and the appearance is black and easy to rust.