Korean drama production companies often hire freelance composers or music directors specifically for background scores (BGM). Sometimes, these tracks are considered "sound design" rather than "songs." Due to licensing issues, sample clearance (the throat singing might be a sampled library track), or simple oversight, many iconic BGMs never receive an official digital release.
This is where the "Mongol" label sticks. The low, drone-based chanting creates a fundamental tone so deep it vibrates in your sternum. In shamanic traditions, these low frequencies are used to communicate with the spirit world. For Son Oh-gong, it signals his transcendence of human limitations. He is not a man; he is a Gwimo (Monster/Demon God). a korean odyssey mongol heleer
When the tvN drama A Korean Odyssey (also known as Hwayugi ) aired in 2017, it captivated audiences not just with its twisted romance between the bumbling Seon Mi (Oh Yeon-seo) and the egotistical deity Son Oh-gong (Lee Seung-gi), but with its unique auditory landscape. Among the haunting instrumentals and K-pop ballads, one piece of background music stands out as a fan-favorite enigma: the track referred to by the fandom as the "Mongol Heleer." The low, drone-based chanting creates a fundamental tone
For fans who continue to search, loop, and hum that low, guttural drone, the track is more than just BGM. It is the sound of an ancient heart beating inside a modern fantasy. It proves that sometimes, the best things in K-dramas are the ones the producers forgot to put on the album. He is not a man; he is a Gwimo (Monster/Demon God)
Until tvN decides to release an "Unreleased BGM" album (fans are still petitioning in 2025), the Mongol Heleer remains exactly where it belongs: echoing faintly behind a god’s rage, just waiting for you to hit the replay button on Episode 10. Have you deciphered the lyrics of the "Mongol Heleer"? Or do you know the original sample source? Let us know in the comments—the search is still on.
There is no victory in this music. It is not triumphant; it is tragic. The melody, if you can call it that, descends. It tells the story of a powerful being who is eternally bound (by the GGG) and eternally suffering. The "Mongol Heleer" is the sound of a leash being pulled tight. Part 4: The Cultural Context – Why Mongolia? Why would the Hong Sisters (the writers of A Korean Odyssey ) use Mongolian motifs for a Korean adaptation of the Chinese novel Journey to the West ?