Minyo

Minyo is an older/ historically earlier style of folk music originating in Japan’s Heian era. Japanese for folk song.
 * Min'yō (民謡), a style of Japanese accompanied folk singing.

It would enter the Korean region at a later time, being then, adopted by Korea, as well as maintaining the recognizable sound of the traditional Japanese originating genre.
 * Minyo (民謠), a style of Korean accompanied folk singing. See: Traditional music of Korea