Muak / Korean Shamanic Ritual Music

Muak is the music of Korean shamanic ritual (gut), in which a mudang (shaman, traditionally a woman) summons, hosts and dismisses spirits over a sequence of named segments called geori. The instrumental ensemble centers on the janggu (hourglass drum) and buk (barrel drum), with jing (gong) and small cymbals (nabal) supplying punctuation; the haegeum (two-string fiddle) or piri (cylindrical oboe) carries melody. Tempo and texture shift sharply between geori — a summoning section may move slowly with sparse drum strokes while a possession episode accelerates into dense interlocking patterns. The shaman's voice ranges from declamatory speech to forced, breathy cries that mark the entry of a spirit.

Korean shamanic ritual is among the oldest religious practices on the peninsula, predating Buddhism (4th century) and Confucianism. Regional styles differ markedly: Seoul-Gyeonggi gut, Hwanghae-do gut and the southern Jindo Ssitgimgut each carry distinct repertoires of geori. Under the Joseon dynasty (1392-1897) mudang were socially marginalized but ritual demand persisted. South Korea designated key gut traditions as Important Intangible Cultural Properties from the 1970s onward, and Kim Keum-hwa (1931-2019), recognized for Hwanghae-do baeyeonsin gut, became the tradition's most documented practitioner.

On Kim Keum-hwa's 'Seohaean Baeyeonsin Gut' recordings, follow the drumming density across geori — the same rhythmic cell is played slowly in opening sections and at high speed in possession sequences. The shaman's voice production shifts audibly between everyday speech, sung incantation and the strained timbre that signals a spirit has arrived. The role of the instrumentalists is to track the shaman's state rather than the other way around.

Recordings of Kim Keum-hwa's Hwanghae-do gut are the most accessible documentary entry. Studying a single 15-minute geori, with notes on its place in the ritual sequence, is more rewarding than playing a long ritual recording through.

Some contemporary Korean mudang maintain active social-media presences and stream consultations online, a phenomenon that has both broadened public access to ritual practice and prompted debate about commercialization. Hwanghae-do gut, originally from what is now North Korea, survives in South Korea because practitioners fled south during the Korean War.