A gosu (literally "drummer") is a drummer in performances of pansori, a form of traditional Korean narrative/theater that is usually performed by just two musicians: a solo singer and a drummer. The gosu supports the sorikkun, or singer, by providing rhythms with a soribuk (pansori drum), a shallow barrel drum with a pine body and two cowhide heads. Impromptu short verbal sounds made by the gosu, called chuimsae, also play an important role.

Pansori gosu
Gosu
Korean name
Hangul	판소리 고수
Hanja	판소리 鼓手
Revised Romanization	Pansori Gosu
McCune–Reischauer	P'ansori Kosu