Metre (poetry) of over some two-and-a-half millennia. Beginning with the earlier recorded forms: the Classic of Poetry tends toward couplets of four-character lines, grouped in rhymed quatrains; and, the Chuci follows this to some extent, but moves toward variations in line length. Han Dynasty poetry tended towards the variable line-length forms of the folk ballads and the Music Bureau yuefu. Jian'an poetry, Six Dynasties poetry, and Tang Dynasty poetry tend towards a poetic metre based on fixed-length lines of five, seven, (or, more rarely six) characters/verbal units tended to predominate, generally in couplet/quatrain-based forms, of various total verse lengths. The Song poetry
The Quatrain of Seven Steps The Quatrain of Seven Steps The Seven Steps Verse, also known as the Quatrain of Seven Steps (), is a highly allegorical poem that is usually attributed to the poet Cao Zhi. The poem's first appeared in the classic text "Shishuo Xinyu", published in 430. The famed scene (79th "hui") describes Cao Pi's suspicions of his brother Cao Zhi trying to usurp his rule (Cao Pi was also jealous of his brother's talents, particularly his masterful command of imagery). Consequently, Cao Zhi is summoned to the court and is issued an ultimatum in which he must produce a poem within