What is the drama "Suzhou Beach Spring"?

Suzhou beach spring has a long history, which was formed during the Qianlong period of the Qing Dynasty. All the beach springs are performed by one or two people to five or six people, with rap and simple accompaniment. Later, it developed into local operas, such as Suzhou Beach Spring renamed Su Ju, Shanghai Beach Spring renamed Shanghai Opera, Hangzhou Beach Spring renamed Hangzhou Opera, Ningbo Beach Spring renamed Jiaoju and so on. In Qing Dynasty, Fan Zushu wrote "Hanging Legacy": "The beach spring is divided into five people, with black children, pipa, huqin and drums, and singing is also a play." Hua Yao's Qu Hai Shao Yi Le Yuan: "If I play a flat tune at random, the rumor of Guangdong Tanquan is not wide, or it is attached to Kunpu, or it is not counted in the movement." Qu Qiubai's On Popular Literature and Art: "Revolutionary popular literature and art should be in the form of storytelling and beach spring." Qu Qiubai's On the Realistic Problems of Popular Literature and Roper's Popular Literature: "What they like" are comic books, shadow play, Woodenhead play, peep show, storytelling, beach pornography, announcements and so on.