The Sedoka is an unrhymed poem made up of two three-line katauta with the following syllable counts: 5/7/7, 5/7/7. A Sedoka, pair of katauta as a single poem, may address the same subject from differing perspectives.

A katauta is an unrhymed three-line poem the following syllable counts: 5/7/7.

A nonet has nine lines. The first line has nine syllables, the second line eight syllables, the third line seven syllables, etc... until line nine finishes with one syllable. It can be on any subject and rhyming is optional.

line 1 - 9 syllables
line 2 - 8 syllables
line 3 - 7 syllables
line 4 - 6 syllables
line 5 - 5 syllables
line 6 - 4 syllables
line 7 - 3 syllables
line 8 - 2 syllables
line 9 - 1 syllables

Tetractys, a poetic form invented by Ray Stebbing, consists of at least 5 lines of 1, 2, 3, 4, 10syllables (total of 20). Tetractys can be written with more than one verse, but must follow suit with an inverted syllable count. Tetractys can also bereversed and written 10, 4, 3, 2, 1.

Double Tetractys: 1, 2, 3, 4, 10, 10, 4, 3, 2, 1

Triple Tetractys: 1, 2, 3, 4, 10, 10, 4, 3, 2, 1, 1, 2, 3, 4, 10

and so on.

"Euclid, the mathematician of classical times, considered the number series 1, 2, 3, 4 to have mystical significance because its sum is 10, so he dignified it with a name of its own - Tetractys. The tetractys could be Britain's answer to the haiku. Its challenge is to express a complete thought, profound or comic, witty or wise, within the narrow compass of twenty syllables." - Ray Stebbing

Haiku

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