Gogyoka

Gogyōka (五行歌), or Gogyohka, is a form of Japanese poetry pioneered by Enta Kusakabe in 1957 in his quest to find freedom from the constraints of tanka poetry. Unlike tanka, gogyōka does not have any syllable requirement for the length of its lines. The only hardfast rule of gogyōka is that the poem should be five lines long, with line breaks occurring as a result of natural breath-pattern, which is individual to a particular speaker and their language. Gogyōka have been written in French, Chinese, Arabic, Tagalog, and Korean, as well as Japanese and English.

Examples
"the cherry tree, pregnant with flowers, longs for Its moment of Incarnation"

- Kyoko Shimose

"The rain falls steadily until we part Gazing at the pale blue sky through the window of the train I feel no sadness"

- Matthew Lane

Gogyōshi
Gogyōshi (五行詩) is a development of gogyōka, wherein the rule that line breaks are governed by breath is discarded.

"Is my cat

really dead?

I caress

her throat

very softly"

- Tarō Aizu

"Sweetfish

jumps out

of the silent river

colored by the sunset

from dark mountains."

- Tarō Aizu