Awu is a fringe air-sounding instrument of the Sama branch of the Yi people and the Zijun people. The whole body is made of clay and mud, and some are fired into pottery.

When playing the diamond-shaped Awu, the thumbs of both hands are behind, the other four fingers are in front, and the index fingers of both hands are respectively pressed into a hole, the two holes are fully pressed to produce the sound of c1, the left hole or the right hole is opened to produce the sound of d1, and the sound of e1 is produced in both holes.

Regardless of size, Awu can only make three sounds. The tone is soft and rich, especially when it is played in the dead of night, the sound travels far and there is a deep and sad feeling.

Most of the Awu music has been lost, and the only remaining "Awu Song" is an ancient ballad; the "Polari" music is used to pray for rain.