What should I do if the strings of the violin can't play sound?

Common sense of violin use and maintenance

1, string installation and tuning

(1) Each string shall be installed on the specified chord axis and wound in sequence.

(2) The string should be installed as straight as possible, so that the string is not easy to loosen. Don't stagger, let the strings contain each other and affect the tuning.

(3) After the string passes through the shaft hole, the twisting direction is from inside to outside, so be careful not to reverse twist.

(4) In order to facilitate the tuning of the strings, the direction and position of the chord axis should be adjusted when installing the strings.

(5) When tuning strings, generally, the pitch of A string is calibrated first, and then D, E and G strings are calibrated respectively according to the pitch of A string. Sometimes a few strings

After moving, the pitch of a string will be low, which needs to be proofread repeatedly.

(6) When you are a beginner, you can listen to a single tone first, and then pull two strings at the same time after the pitch is basically calibrated, and make a slight adjustment to be straight.

Until the sound is completely harmonious.

(7) The process of tuning strings is also the process of practicing ears. It is forbidden to practice the piano if the strings are not allowed.

(8) Under the influence of climate change, the chord axis will become tight and loose, which will bring inconvenience to chord adjustment. When it is too tight, pencil lead can be used to coat the shaft; Taisongshi

Apply some rosin (chalk dust will do).

2, violin accessories

The position of the piano code and the radian of the upper edge should be appropriate, otherwise it will affect the * * * sound of the piano and bring difficulties to the performance.

(1) Placement position of the bridge horse: The bridge horse should stand upright between two sound holes, and the rear edge of its foot should be cut in the two sound holes.

On the line of the gap. Due to the tension of the strings, the bridge horse will move forward after a period of time. If it is not checked regularly and corrected in time, the bridge horse will be deformed, which will affect the strings and fingerboards.

Distance and the relationship between the five chords.

(2) The distance between the strings on the piano: The distance between the strings on the piano should be equal, neither wide nor narrow. The distance between G string and E string on the string pillow, and the five-degree pitch relationship between strings.

(3) Height of the bridge: The height of the bridge is determined according to the height of the fingerboard. The height of the finger should be appropriate when pressing the strings at the high handle position. When playing strong notes, the strings should not be stuck on the fingerboard to make a hissing sound. The left end of the bridge is slightly higher than the right end, because the G string has a large amplitude and should be higher from the fingerboard, while the E string has a small amplitude and should be lower from the fingerboard.

(4) The radian of the bridge horse: the radian of the upper edge of the bridge horse is based on the degree that the bow hair does not touch the adjacent strings when playing strong notes on the D and A strings. Bending too much will make it inconvenient to change the bow, and it will be peaceful and easy for the bow hair to touch the adjacent strings.

(5) Grooves on the piano horse: The grooves on the piano horse should not be too narrow or too deep, otherwise the strings will be tightly stuck on the handle, which will not only affect the vibration of the strings, but also easily cut the skin of the strings, resulting in broken strings.

(6) Trimming of the bridge horse: The bottom surfaces of the two feet of the newly bought bridge horse need to be trimmed to be close to the piano panel before they can be used. When pruning, you can refer to the old piano horse and cut off most of the excess parts with three knives and one foot. Then, fine sandpaper is pasted on the piano surface where the bridge is placed, and the two soles of the bridge are rubbed back and forth gently on the sandpaper, so that the soles are closely attached to the piano panel.

Chord hook

String hook is an accessory installed on string binding board to fine tune the pitch of strings, usually installed on A string and E string.

silent

Mute is an accessory added to the bridge to reduce the volume.

Fixed whistle

The tuning whistle has a fixed pitch and can be tuned according to the pitch. There are two kinds of tuning whistles: a single pipe has only one pitch; The four pipes have four pitches: g, d, a and e.

3. Protection of violin

Protection of piano sound

(1) After the violin is used, the rosin powder on the fingerboard, strings and body of the violin should be wiped clean with a dry and soft cloth, so as to prevent it from accumulating on the violin for a long time and affecting the convenience of pronunciation and performance.

(2) After the violin is used for a long time, a lot of dust and rosin powder will accumulate in the belly of the violin, which should be removed regularly. The method is to sprinkle a handful of washed and dried rice grains into the belly of the piano from the sound hole, shake the piano body back and forth, left and right, and then pour out the dusty rice grains.

(3) The violin should be stored in a cool and dry place to prevent it from being opened due to moisture. In mildew season, the strings can be slightly relaxed.

Protection of bow

(1) After using the bow, wipe off the rosin powder on the bow rod and loosen the bow hair to keep the bow rod clean and elastic.

(2) When using the bow, the hair of the bow is moderate. Tight twisting damages the elasticity of the bow and makes it inflexible; If it is too loose, it will stick to the bow with a little force, which will affect pronunciation and make it difficult to play.

(3) Don't touch the arch hair with your hand. After the tin bow hair is stained with sweat and oil, rosin can't be wiped.

(4) Don't rub too much rosin, otherwise the pronunciation will be very noisy.

4. Simple violin repair

(1) What should I do if my violin sticks? Sometimes the violin's panels and side panels will crack due to moisture. The repair method is as follows: first, wet the glue-opened part with gauze, wash off the old glue completely, and then apply hot fish maw glue (commonly known as yellow croaker glue) for gluing after it is completely dried. In order to make the piano plates stick together closely, it is necessary to clamp the piano plates with special clips (or replace them with chin rests) and fix them for a period of time after gluing.

(2) What if the sound column falls down? Pour the sound column out of the sound hole, then insert the tip of the sound column installer into the lower side of the inclined surface of the sound column, put the sound column into the sound hole and stand right behind the right foot of the bridge, about 5 mm away from the bridge. After the sound column is placed, check whether it is correct from the sound hole and chord hole at the bottom of the piano.

The position of the sound column is very important, and improper placement will seriously affect the sound effect.

The sound column installer can be self-made, that is, a thick iron wire about four inches long is twisted into an S shape, and one end is hammered flat and sharpened.

(3) What if the tendon of the cowhide on the string board is broken? Thread the new cowhide tendon with the original length into the hole of the wire binding plate, wrap the three ends of the tendon with thread, then light a match and bake the end of the cowhide tendon, and then turn off the fire when the end expands. In this way, the installed rib will not come out of the hole because of the large tension of the string. The G string and the huqin on the double bass can also replace the cowhide tendon.

(4) What should I do if the bow hair is old? Bow hair will be stained with oil and dust when used, and it needs to be cleaned before use. The cleaning method is as follows: first, soak the hair in warm water (the water should not be too hot to avoid shortening it), rub it with soap, gently rub it with your fingers, then rinse it with clear water for two or three times, and then dry it with a clean cloth. Be careful not to get the bow tip and ponytail box wet when washing.

Bow hair will become smooth after being used for a long time, and rosin can't be rubbed. At this time, it is best to put on new bow hair. You can also use the old bow hair inside and out for a while.