Gagok

Gagok (Korean: 가곡; Hanja: 歌曲) is a genre of traditional Korean vocal music, derived from jeong-ak, for mixed female and male voices. Its origins date back to the sijo sung poetry enjoyed by the aristocracy in the Goryeo period (10th-14th century). The genre evolved over time, reaching its current form (sakdaeyeop) in the late Joseon dynasty. Slower styles, such as mandaeyeop and jungdaeyeop have now disappeared.