Bone flute is a kind of flute and the earliest musical instrument. Also known as eagle flute or eagle bone flute, the following is a detailed analysis of the production method of bone flute.

The body of the bone flute is mostly made of the wing bones of the eagle, and also the leg bones of the crane. Bone flutes have different specifications, lengths and thicknesses. They are usually shorter and thinner than bamboo flutes. Generally, the length of the wing-bone flute is about 25 centimeters, and the length of the crane-leg flute is about 29 centimeters and 2 centimeters in diameter. The top of the tube body is sealed, leaving only a narrow slit as a blowing hole, a sounding hole is slanted on the back of the tube end, and six sounding holes are opened at the lower part of the front of the tube body (or the first five and the other one). When playing, the bone flute is placed upright, the right hand is at the bottom, the ring finger, middle finger and index finger are pressed into the first, second and third holes, the left hand is at the top, and the fourth, fifth and sixth holes are pressed by the ring finger, middle finger and index finger. Use flat blowing and super blowing, with a range of d1-e3. The sound is crisp and melodious. Techniques such as portamento and vibrato are often used in playing. In the Huangnan Tibetan Autonomous Prefecture of Qinghai Province, there is also a wild goose flute made from the wing bones of a wild goose. There is no fixed specification for the pipe body. A wooden plug is placed on the upper end of the flute pipe. There is a gap between the wooden plug and the pipe wall for blowing holes. The pipe body has six sound holes. The playing method is the same as the eagle bone flute.

The body of the tube is mostly made of the wing bone of the eagle, generally 24 cm to 26 cm in length and about 1.5 cm in diameter. The tube is hollow without a reed whistle, and the upper and lower ends of the tube are all through holes. hole. When making, first scrape off the meat on the wing bones, saw off the joints at both ends, smooth the upper and lower nozzles, and remove the marrow. The nozzles at both ends are oval, the upper opening is larger and the lower opening is smaller. From the bottom to the top, every 2.2 cm or so, there is a sound hole with a diameter of 0.7 cm (slightly oval), and there are three sound holes in total. The process of opening the sound hole is very important. The folks often use the width of the index finger and the middle finger flat on the bone canal as the standard distance. Eagle flutes not only have different lengths, but also different nozzle sizes. The sound hole distances are also different. The multi-talented Tajik people, when the sound hole of the eagle flute is finished, will carve patterns or inscriptions on the white and handsome flute, just like an exquisite handicraft. What is even more extraordinary is that after the eagle flute is finished, it cannot be played first. It must be placed on the ceiling of the house. After half a year of fumes from the pit, the appearance will show a beautiful and elegant dark red, and then the band can be removed. by your side. There is also an eagle flute with a length of 28 centimeters, a diameter of 2 centimeters at the upper end and a diameter of 1 centimeter at the lower end.