The style of Tang poetry is colorful and innovative: it not only inherits the tradition of Han and Wei folk songs and Yuefu, but also greatly develops the singing style; It not only inherited the seven-character ancient poems of the previous generation, but also developed into a long and huge narrative romance; It not only expands the use of five-character and seven-character forms, but also creates a particularly beautiful style. Most Tang poems are metrical poems. The so-called metrical poems refer to poems with strict rules on format and rhythm. The Tang Dynasty is called "Modern Poetry" and "Modern Poetry", which can be divided into three types according to the number of sentences: quatrains, regular poems and parallel poems.