Janggu | Buk
The janggu (or janggo; also spelled changgo) or sometimes called seyogo (slim waist drum) is the most widely used drum used in the traditional music of Korea. It is available in most kinds, and consists of an hourglass-shaped body with two heads made from animal skin. The two heads produce sounds of different pitch and timbre, which when played together are believed to represent the harmony of man and woman.
The buk is a traditional Korean drum. While the term buk is a native Korean word used as a generic term meaning "drum" (the Sino-Koreanword being go), it is most often used to refer to a shallow barrel-shaped drum, with a round wooden body that is covered on both ends with animal skin. Buk are categorized as hyeokbu (혁부, 革部) which are instruments made with leather, and has been used for jeongak(Korean court music) and folk music.