The lune is also known as the American Haiku. It was first created by the poet Robert Kelly (truly a great poet) and was a result of Kelly’s frustration with English haiku. After much experimentation, he settled on a 13-syllable, self-contained poem that has 5 syllables in the first line, 3 syllables in the second line and 5 syllable in the final line.
There is a variant lune created by poet Jack Collom. His form is also a self-contained tercet, but his poem is word-based (not syllable-based) and has the structure of 3 words in the first line, 5 words in the second line and 3 words in the final line.
As with Kelly’s lune, there are no other rules.
Thanks to Robert Lee Brewer
Recap: Kelly Lune, Syllables: 5/3/5
Collom Lune, Words: 3/5/3
Any topic, meter, rhyme, metaphor allowed.
Whereas Haiku is a Japanese word the the plural is still Haiku,
If you write more than one Lune, they are Lunes.
How to Write a Collom Lune
Lune authorship permits
words, not syllables be counted
three, five, three.
Rhyming Kelly Lune
Rhyming a a a
all the way
becomes quite okay.