When playing the chorus, the player sits cross-legged on the floor or squatting and kneeling with one leg, and the piano box is placed on the ground or his back is against his left leg.

The left hand supports the piano bar, presses the strings with the middle finger pads of the index finger, ring finger, and little finger, and presses up and down to rub the strings.

Commonly used techniques such as up-and-down strumming and ring finger strumming, etc., play octaves, fifths, fourths, and second chords with trembling long. The right hand holds the bow, the bow handle is held at the tiger's mouth, the thumb and index finger hold the bow rod, and the other three fingers push and pull the bow rod to control the tension of the bow hair.

Chaoer's chords are A, d according to the relationship of the fourth degree, and the range is A-d1. The sound is soft and rich, and belongs to the bass instrument. Can be used for solo, instrumental ensembles or to accompany folk song and dance and rap.