Gijak is one of the traditional Uygur instruments of a long history. It is usually made of walnut,mulberry,apricot or phoenix woods. The surface is covered with snake skin. On the back part of bowl shaped head, there are many small holes for the purpose of the best resonance of the tone. The entire instrument is delicately embellished. And it is mainly used to play folk music and Uygur Twelve Muqam melodies.