The bass is humming, and the Li people sing their musical instruments. Li language is also called cluster. It is called Dadongxiao in Chinese. Popular in Hainan Province.

When playing the bass dulu, the mouth contains a blowpipe, and the playing method and technique are the same as the dulu. Hold the tube upright, the index finger and ring finger of the right hand press the second and first holes, and the thumb and ring finger of the left hand press the back hole and the third hole.

In Li's house, you can sometimes see bass toots with longer tubes, and the bottom sound hole needs to be pressed with your toes.