What schools of poetry developed in the Tang Dynasty?
As far as genre forms are concerned, various genres of China's classical poetry are "three, four, five words, six and seven miscellaneous words, Yuefu, Gexing, modern poetry and quatrains, all of which are extravagant works." The Tang people developed the ancient poems with five or seven words since the Han and Wei Dynasties, which not only maintained the inherent beautiful quality of the ancient poems with five or seven words, but also increased the vivid appearance of the ancient poems with five or seven words, especially absorbed the advantages of modern poems since the Tang Dynasty, making the sounds and feelings of the ancient poems with five or seven words more graceful and swaying. In the early Six Dynasties, Tang Yi became a great country. Even Yuefu poems, which had lost their musicality since the Northern and Southern Dynasties, made great progress in the Tang Dynasty. Li Bai still likes to write current events with old sayings; To Du Fu, he developed into a "famous story, nothing to rely on" (Preface to Ancient Poems of Yuefu by Yuan Zhen), and devoted himself to writing new poems of Yuefu, which essentially inherited the realistic tradition of "feeling sadness and joy, originating from things" in the Han Yuefu. When Bai Juyi arrived, he joined hands with Yuan Zhen, Zhang Ji, Wang Jian and others to launch the new Yuefu movement, which made Yuefu poetry develop to a new stage.