2. According to the number of turns of the string wound on the pin, loosen the corresponding number of turns counterclockwise with a wrench, so that the sum of the holes on the pin is perpendicular to the bottom surface of the tuning box.

3. Choose the same type of string, pass through the S-shaped sound hole, enter through the panel from the chord hole on the right side of Yueshan, and pass through the hole of the chord pin, which is about 1.5CM more.

4. Press the extra part tightly on the chord nail, nail all the extra chords to the inside of the tuning box, and rotate counterclockwise around the chord nail from the upper part of the chord nail from outside to inside (1-5 chords for 3-2 times. 6- 16 chord, 2- 1 turn 17-2 1 chord 1 turn).

5. Screw your fingers into the innermost trap of the string nail from the inside out, hold the string with the other hand, and tighten the string nail clockwise with a wrench.

Key points:

1. First, press the end of the string tightly on the nail, otherwise there will be noise at the end of the outcrop when playing.

2. The strings must be perpendicular to the first contact point between the string eye and the string nail, otherwise the guzheng will be out of tune easily.

3. The wound string must be laid flat on the string nail from the outside to the inside, and the string cannot be wound together into a ball, otherwise it is easy to break the string unresponsively when the string is tightened.

6. What should I pay attention to when installing (changing) strings?

1. First remove the broken string wound on the piano nail, then cover the broken string nail with a tuning wrench, and then turn it back the same number of times, so that there is enough space for the new string to be tightened.

2. After the string tail passes through the nail hole, it should be bent inward so that the string behind can buckle the string tail and interlock.

Don't put the piano code on the piano code when calibrating the strings. When the tension is close to the tightness of adjacent strings, pick up the strings and put them on the piano code. It is not easy to damage the strings at the pay-off point, and the tension of the strings can be balanced.

4. The treble can be 50- 100 minutes away from the standard pitch, and then the strings vibrate on both sides of the piano code, fully extending to the standard pitch.

Seven, how to reasonably maintain the strings and extend their service life?

1, the high-pitched strings of Zheng are easy to break, so you can buy 1-9 strings as a backup, but the low-pitched strings are generally not easy to break, so you should make up the broken strings immediately.

2. Always keep the timbre accurate, so as to keep the tension of strings and the purity of timbre.

The strings are made of steel wire wrapped in nylon. If you get wet in the rain or sweat too much, the steel wire inside will rust, and the black boy will turn yellow and age easily. Don't play the guzheng with wet hands, wipe the strings with a wet cloth, scrape the strings with a knife or other hard instruments, and dust with a soft brush. Dust should be disposed of in time.

4. Wash your hands and dry them before playing the piano to prevent water, sweat and oil. Fingers sticking to the strings will make the strings dirty or rusty and shorten their service life. In order to prevent dust, it is best to make a piano or a piano cover, and then cover it after playing the piano.

5, usually put the Zheng indoors, can't get wet, don't be exposed to the sun for a long time, and don't be close to the extremely dry environment such as heating.

6. Don't play the guzheng for a short time, don't loosen the strings, don't disassemble the piano code, as long as it is moisture-proof, sun-proof and ash-proof. Don't put it directly on the ground or hang it on a wet wall. When the humidity is high, put the guzheng in the box and put the desiccant in the box.

7. When moving the piano code to correct the sound, you should first touch the strings upward to reduce the pressure of the strings on the piano code, and then move them to avoid damaging the strings and scratching the panel.

8, often used, can make the musical instrument strings and * * * singing body keep a good vibration state for a long time, which is beneficial to the musical instrument.