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
Flow Chart (poem) Flow Chart (poem) Flow Chart is a long poem by the American writer John Ashbery, published in its own volume in 1991. "Flow Chart" is a work of 4,794 lines, divided into six numbered chapters or parts, each of which is further divided into sections or verse-paragraphs, varying in number from seven to 42. The sections vary in length from one or two lines, to seven pages. Scott Mahler wrote in the "Los Angeles Times": "Ashbery's poetry has been called mysterious, original, difficult, dream-like, Romantic, a part of the continuum of American poetry that includes Walt Whitman, Emily Dickinson, Wallace