Metric poems originated from Shen Yue and other new-style poems that emphasized the antithesis of metrical poems in the Southern Dynasties, and were further developed and stereotyped by Shen Quanqi and Song Wenzhi in the early Tang Dynasty, which prevailed in the Tang and Song Dynasties. Rhyme has strict rules in word, rhyme, even tone and antithesis.
Metric poetry is one of the basic forms of modern poetry, which sprouted in Shen Yue's new poetry focusing on rhythm and antithesis during Qi Yongming's period in the Southern Dynasties. It was shaped in the early years of the prosperous Tang Dynasty and matured in the middle and late Tang Dynasty.