What folk song and dance activities are recorded in The Book of Songs Zheng Qin Feng Yan?

According to historical records, at that time, there was a "Zi" activity on March 3 every year in the Qin Yan area of Zheng State. People give priority to offering sacrifices, but in the long-term development, the original solemn measures have been transformed into festival celebrations with both the functions of entertaining gods and people. In the spring climate, everything is revived, and young men and women get together to dance and express their love. How carefree!

Although Confucius, a saint, was disgusted with the lewd taste of the "Voice of Righteousness", he was not opposed to singing and dancing that really expressed his feelings. The Book of Songs is both a poem and a dance, so the ancients said "three hundred songs and three hundred dances". The two-week folk song and dance activities recorded in The Book of Songs, which was just handed down by Confucius, were quite prosperous. The legendary Confucius can also know songs and dances that ordinary people can't understand. Once, Qi Hou saw a bird with one foot dancing in front of the court. Confused, he went to ask Confucius. Confucius said that it was the dance of Shang sheep. Shang Yang is a legendary bird with only one foot. Once it appears, it will rain heavily. Hearing this, Qi Huangong hurried to prepare for the flood, but only Qi escaped the disaster. According to legend, during the Spring and Autumn Period, children performed "Shang Yang Dance". Holding hands, the two men hooked each other and lifted one foot, one foot jumped on the ground, singing: "It's going to rain heavily, Shang Yang dances." Judging from the movements of the dance, it is likely to be a dance that imitates birds, or it may be evolved from the ancient rain-praying dance.