Yoon Ho-Se

Traditional music is an umbrella term used in the mid–20th century by folklorists and ethnomusicologists to denote community-rooted, orally transmitted repertoires tied to social ritual, work, celebration, and storytelling. Unlike commercial pop or art-music traditions, traditional music is typically learned by ear, varies regionally, and evolves slowly through communal participation. It often features modal melodies, cyclic rhythms, heterophony or unison singing, and indigenous instruments whose timbres are integral to local identity. Lyrics tend to preserve language, history, and collective memory. While the musical practices themselves can be ancient, the phrase “traditional music” emerged to replace earlier, narrower or colonial framings like “folk” or “ethnic” music, foregrounding continuity, locality, and living practice rather than exoticism.

Sanjo is a Korean instrumental solo genre characterized by a continuous suite of increasingly faster movements performed by a single melodic instrument with rhythmic accompaniment on the janggu (hourglass drum). It is best known through gayageum sanjo, but parallel traditions exist for geomungo, daegeum, haegeum, piri, and other instruments. The music unfolds through set rhythmic cycles (jangdan) that accelerate from very slow to very fast, while the soloist spins ornate, semi-improvised variations on core motifs. Typical modes (jo) include pyeongjo and gyemyeonjo, and the performance relies on signature ornaments (sigimsae) such as slides, microtonal bends, and vibrato. Sanjo is deeply expressive—moving from introspective pathos to exhilarating virtuosity—and is a cornerstone of modern Korean traditional performance practice.