Ficak (pinyin: fēi chá kè) is a single-reed gas-sounding instrument unique to the Xibe people. The Xibe language is also called Olhuifizak. The Han people call it the reed flute. It is popular in Qabu Chaerxibo Autonomous County, Yili Kazak Autonomous Prefecture, Xinjiang Uygur Autonomous Region. The Xibe people have a long cultural tradition, and folk songs and dances are popular. You can often hear high-pitched and unrestrained hunting songs, cheerful wedding songs, field songs of productive labor and pastoral songs full of grassland flavor. Whenever night falls on the earth, there will be a duet of love songs of young men and women from a distance, with beautiful tunes and beautiful words, sometimes replaced by the melodious and euphemistic sound of reed flutes.

The Fizak consists of a double-pipe and two-pipe whistle, with a total length of 25 cm. The tube body is made of reed, which is made by cutting two sections of reed tubes with the same length and thickness from a reed. Generally, the tube length is 21 cm and the inner diameter is 0.8 cm. The two tubes are respectively provided with the same six circular sound holes. , the distance between the holes is equal, and the head and tail ends of the two pipes are tied with ropes and fastened firmly. The two whistles are made of thin reed tubes, the length of the tubes is 5 cm and the outer diameter is 0.8 cm. The upper end can be left open or not, and the lower end is open. At 1 cm from the first end, a rectangular reed system is carved with a sharp knife. The reed, the reed base is down, the reed tongue is up, and the reed is 2.5 cm long and 0.4 cm wide. Finally, insert the two pipe whistles into the upper mouths of the two pipes respectively.

When playing, the tube is upright. Hold the reed flute with both hands, press the two holes with one finger, the ring finger, middle finger and index finger of the right hand horizontally press the lower three holes of the double tube, and the ring finger, middle finger and index finger of the left hand horizontally press the upper three holes of the double tube. The mouth contains a double-pipe reed whistle, the tip of the tongue blocks the upper mouth of the whistle, and it is played with a gentle breath. What is particularly unique is that the player often ties a thin wire near the reed at the lower part of the whistle to adjust the sound of the whistle.

Among the Xibe people, people often play the reed flute to entertain themselves while grazing in the wild or resting during field labor. At night, it is an inseparable close friend of young people. The young man uses the reed flute to convey friendship and love to the girl. Playing it in the silent night, the beautiful flute sound spreads far and far.