Why not use heavy metal or generic horror synth? The choice of Mongol Heleer in A Korean Odyssey is a masterclass in atmospheric dissonance.

Here is the frustrating part for fans. If you search for "A Korean Odyssey OST" on Spotify or Apple Music, you will find beautiful ballads by every major K-pop idol. You will find Let Me Out by NU’EST W and When I Saw You by Bumkey.

You will not easily find the Mongol Heleer track.

The throat singing used in the drama was likely part of the background score library (기본 배경음악) composed by Antonio Vivaldi? No, wait—modern composers. Actually, the specific tracks featuring overtone singing are usually labeled under generic names like The Destruction of Evil or Heavenly Decree.

Because of this scarcity, the search term "A Korean Odyssey Mongol Heleer" has become a niche fan code. Fans upload clips onto YouTube with titles like, "Help me find this scary background music from Hwayugi."

Korea’s historical interactions with nomadic cultures — from the Khitan and Jurchen peoples to the Mongol Yuan dynasty’s influence in the 13th century — created points of contact, exchange, and tension. Those encounters left traces in language, fashion, and even political structures. But in the contemporary cultural arena, Mongol heleer arrives mostly via music, film, and theater: artists curious about sonic textures reach beyond borders, seeking ways to layer Korea’s lyrical sensibilities with the raw resonance of steppe singing.