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
Political verse the "main clause" of the verse. That It could be a statement, part of a dialogue, or a depiction of some action. Then on the next, seven-syllable, part after the cesura, the main clause is reinforced, or additional information is provided. Either by been explained, or completed, or supplemented, or quite often the theme of the main clause is amplified by been repeated or restated in other words. Political verses are usually, but not exclusively, organized in pairs (thus forming “stanzas” of two lines, known as distichs or couplets). The poem can be as short as a single two-line stanza,