Confucian ritual music Hun (hangul: 훈; hanja: 塤) – A globular flute made of baked clay originating from prehistoric times; end-blown like a shakuhachi, unlike an ocarina (which is a whistle design). Derived from the Chinese xun Oboes Piri (hangul: 피리) – A cylindrical oboe with a bamboo body. There are four varieties of piri: Hyang piri (hangul: 향피리; hanja: —) Se piri (hangul: 세피리; hanja: —) Dang piri (hangul: 당피리; hanja: —) Dae piri (hangul: 대피리) – A modernised instrument with clarinet-like keys, used only in North Korea Taepyeongso (hangul: 태평소; hanja: 太平簫; also called hojeok, saenap or nallari) – A conical oboe with a wooden body and metal bell Free-reed Saenghwang (hangul: ; hanja: ) – A free-reed mouth organ with 17 bamboo pipes, derived from the Chinese sheng; uncommon today Trumpets Nabal (hangul: 나발; hanja: ) – Long metal trumpet; used in daechwita Nagak (hangul: 나각; hanja: ) – Sea shell horn, also called sora; used in daechwita Percussion Jong (hangul: 종; hanja: ) – A bronze bell Pyeonjong (hangul: 편종; hanja: ) – A set of 16 tuned bronze bells used in ancient court music; derived from the Chinese bianzhong Teukgjong (hangul: 특종; hanja: ) – A single large bronze bell Pyeongyeong (hangul: 편경; hanja: ) – A set of 16 tuned stone chimes used in ancient court music; derived from the Chinese bianqing Teukgyeong (hangul: 특경; hanja: ) – A single large tuned stone chime Banghyang (hangul: 방향; hanja: ) – A metallophone with 16 tuned iron slabs; derived from the Chinese fangxiang Ulla (hangul: 운라; hanja: or ) – A set of ten small tuned gongs in a wooden frame; derived from the Chinese yunluo Drums Buk (hangul: 북) – A barrel drum used primarily in pansori, pungmul, and samulnori. The term buk is also used in Korean as a generic term to refer to any type of drum. Pungmul-buk(풍물북) – used in pungmul (풍물) Sori-buk (소리북) – used to accompany pansori (판소리) Janggu or Janggo (hangul: 장구 or 장고; hanja: 杖鼓 or 長鼓) – A double-headed hourglass-shaped drum generally played with one stick and one hand Galgo (hangul: 갈고; hanja: 羯鼓) – Double-headed hourglass-shaped drum similar to the janggo but played with two sticks and thinner drum heads; sometimes called yanggo or yangjanggo; no longer commonly used Jingo (hangul: 진고; : 晉鼓) – Largest barrel drum Jeolgo (hangul: 절고; hanja: ) – Barrel