Gasa (poetry)
Gasa was a form of poetry popular during the Joseon Dynasty in Korea. Gasas were commonly sung, and were popular among yangban women. Jeong Cheol, a poet of the 16th century, is regarded as having perfected the form, which consisted of parallel lines, each broken into two four-syllable units. The form had first emerged during the Goryeo period.
In modern Korean, the word is also synonymous with "lyrics of a song" in the context of modern music, an that is shared with Japanese and Chinese.
