What's Zhang Lao Guo holding in his hand?

Drum tube, bamboo tube, one end wrapped in "fish skin" (also sheepskin, or pig urine), to the left

Bend your elbow and hug, pat the skin with the front end of your right palm and make a "bang"; the same

When holding two "bamboo slips" in his left hand, he touched each other and made a "eating" sound. The intersection of two sounds

Wrong, play the role of accompaniment (people still have to sing).

This form of Quyi existed until 50 years ago, but it may be extinct now.