The difference between a double thousand jin erhu and an ordinary erhu

1.The ordinary erhu jack plays the role of cutting tones, fixing the sound of empty strings, setting the tone and fingering; Double jack erhu has a retractable movable jack below the fixed jack, the fixed jack is an ordinary jack (such as our common rope bundle type), the movable jack is a telescopic device on the piano rod, it is stretched outward to jack the string when it cuts the string, and there is a switch on the inside of the rod to control the movable jack, when not in use, the movable jack shrinks inward, leaving the string, and only the fixed jack above plays a role.

2."The Song of Happiness Can't Be Sung" and "The Young Wrangler" are both double thousand jin erhu songs, and the application of double thousand jin aims to expand the vocal range of the erhu, thereby enriching its expressiveness.

3.If you use ordinary erhu performance, you can abridged the score as appropriate, and there are relevant hints at the back of the score of "The Song of Happiness" for reference. "Young Wrangler" can cut the part that uses thousands of pounds.

4.Fine-tuning does not conflict with double jacks, and can be used at the same time. To add, someone will tie the two strings on the top of the fixed jack of the rope bundle and tie the two strings respectively on the "jack", which usually plays a fine-tuning role, and can be adjusted up and down respectively to change the tension of the inner and outer strings respectively, so as to achieve the role of tuning.

This method does not have to be used at the same time as mechanical fine-tuning.

It makes no difference! It's more stable.

Perfect for some special songs.

The main thing is to pluck the strings more to stabilize the strings and prevent the strings from running.

In order to play special music....It seems that there is, and there are also small jacks on the top that play a role in fine-tuning....

Just to prevent the erhu from running the strings.

The so-called erhu "thousand catties" is to wrap a piece of silk string or cotton thread around the stem and tie the strings together, and the position of the thousand catties is about 1 3 places between the upper string shaft and the barrel. The jack can be pushed up and down, and its biggest role is to adjust the effective length of the string, so that the limited length of the string is limited to the jack and the horse. Adjusting the height of the jack can adjust the pitch of the tone, which is very convenient for temporary pitch change during the performance.

In the development and evolution of the erhu, there are also many improvements in the thousand catties: 1. Fixed the thousand catties; 2. Adjustable fixed jack; 3. Double jacks, in addition to a fixed jack, this kind of jack also installs a movable jack under the fixed jack. This reform caused the erhu's vocal range to expand downward by four to five degrees.

At present, the erhu is usually tied with silk strings or cotton threads, which form the effective chord length of the erhu.

The upper tangent point. That is to say, the length of the string above the jack to the pinshaft is the invalid string length.

The distance between the kin end and the end of the saddle is the effective string length of the erhu, according to erhu artistic practice and ergonomics.

and the structure and size characteristics of the human hand, the effective chord length of the standard erhu is: 38

42 cm, median is: 40 cm. The distance from the end of the jack to the stem and the width of the tie of the jack is: about centimeters. They are determined from person to person, mainly based on the length, size and distance of the fingers.

Depending on the characteristics, the key is to be able to play freely with the correct string hand.

The change of the position of the jack will cause a change in the effective chord length, such as a change in the tension of the string under a certain standard pitch requirement; The vibrational pronunciation of the erhu will change accordingly.

When the effective chord length is: 40 cm, the timpani inner chord: ; Outer strings: At 440Hz (A1), the total tension of the two strings of the erhu: kg; (The tension of the inner chord is slightly greater than that of the outer chord).

If the saddle is 8 mm high, the angle of string pressure is about 168-170 degrees.

The total pressure of the strings through the saddle on the epithelial membrane is about: kg. (Excluding tuning pad micropressure).

1. The number of jack wires is different.

As the name suggests, there are two jack lines, a reed rolling fixed jack and an active jack;

Ordinary erhu has only one jack line, which is a fixed jack.

2. The effect is different.

The thumb of the double jack erhu pushes up the control plate, and the movable jack opens, and the vocal range of the ordinary erhu is expanded downwards by a pure fourth; The thumb pulls down the control board, and the moving jack is lifted to resist the strings, becoming the undercut point of the effective string length, which is the same as an ordinary erhu.

The jack line of the ordinary erhu is fixed and unadjustable, and the effective playing area below the jack is below, while the length of the string above the jack to the string shaft is invalid string length, which is wasted in vain.