What does "human art" mean when we usually talk about it, and what is the difference between it and experimental drama?

The full name of "People's Art" is "Beijing People's Art Theatre". Founded in 1952. The theater is famous for its performances of plays by Guo Moruo, Lao She, Cao Yu and Tian Han. Its representative plays include "Tiger Fu", "Cai Wenji", "Wu Zetian", "Longxugou", "Camel Xiangzi" and "Teahouse" , "Thunderstorm", "Sunrise", "Peking Man", "Death of a Famous Actor", "Guan Hanqing" and foreign dramas "The Stingy Man", "Aesop", "The Man with the Gun", "A Wise Man Thinks A Thousand Things" There is a mistake" and so on. The famous drama master Jiao Juyin once served as the theater's chief director and trained a large number of performing artists represented by Su Zhi. Since the 1980s, a large number of outstanding young actors have emerged. The main repertoire includes "Wang Zhaojun", "Absolute Signal", "Xiaojing Hutong", "Wedding and White Events", "The Nirvana of the Dog", "The First Floor in the World", "Li Bai", "Birdman", "Noord Alley" , "Uncle in Beijing", "Antiques", "Boundless Love", "Lights of Ten Thousand Houses", "The Orphan of Zhao", etc. The main foreign plays performed include "The Return of the Lady", "Beloved of God", "Death of a Salesman", "Mahjong" and "Mutiny". There are also old artists such as Shu Xiuwen, Yu Yuzhi, and Lin Liankun, as well as newcomers such as Pu Cunxin, Yang Lixin, and Xu Fan.

"Experimental Drama" refers to the Central Experimental Drama Theater. Founded in September 1956. The representative plays performed by the theater mainly include: "One Servant and Two Masters", "Suffering Together", "Thunderstorm", "Flowers of Tangdi", "The Peach Blossom Fan", "The Hate of Black Slaves", "Three "The Walk", "The Last Scene", "The Call of the Future", "Song of the Wind", "Dawn of the Gray Kingdom", "The True Story of Ah Q", "A Visit from the Dead to the Living", "The Merry Wives of Windsor", "Sifan", "He's Bi", "The Enlai of Zhou Jun", "Old Stubborn", "Faust", "Fighting the Capital", "A Doll's House", "A Street of Bad Words", "The Field of Life and Death", etc. It once had veteran artists such as Ouyang Yuqian, Sun Weishi, Yu Lan, and Zhang, and Zhao Youliang, Zheng Zhenyao, Shi Weijian, Tantai Renhui, Zhang Jiasheng, Lei Kesheng, Li Fazeng, Li Xuejian, Feng Xianzhen, and Han Tongsheng are also still active on the stage.