Who initiated the expressionist tradition of China's classical literature?

The Realistic Tradition of Classical Literature

The Book of Songs [1] is the earliest collection of poems in China. It was called the Book of Songs in the pre-Qin period, and it was also called 300 poems or 300 poems. It collected about 305 poems from the early years of the Western Zhou Dynasty to the middle of the Spring and Autumn Period. In the Western Han Dynasty, it was honored as a Confucian classic, formerly known as The Book of Songs, which has been in use ever since. Musically, it is divided into both refined and popular tastes. "Elegance" is mainly court music songs, divided into elegance and vulgarity, 105; Ode is mainly composed of ancestral temple music songs, with 40 songs. The main methods of expression are fu, bi and xing. Fu means showing the truth (telling the truth about Chen Qi), Bi means metaphor, and Xing means inspiration. The highest ideological and artistic value in The Book of Songs is folk songs, "Hungry to sing about its food, hard to sing about its things" and "Cutting Tan".