William Gillespie image by Miriam Martincic.

Progressive

A progressive form is a constraint that systematically changes throughout the duration of the poem. Systematically means the progression is usually bound to a numeric sequence (see Number Poetry, Addition/Subtraction Poetry) or is Abecedarian.

A technique of steadily increasing the number of letters or syllables per word or line, or the number of words per line, is known by the Oulipo as a Snowball. A steady decrease in the same would be a Melting Snowball. A poem that demonstrates a steady increase followed by an equally steady decrease is sometimes known as a Diamond Poem, because of the shape it makes when centered on the page. Traditionally, a poem in which the number of syllables per word increases steadily on every line is known as Rhopalic Verse.

Source

Dominique Fitzpatrick-O'Dinn

Examples

Alphabetic Africa, by Walter Abish

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