Yongbieocheonga, Songs of the Dragons Flying to Heaven represents its uniqueness as hyangak, which was originally tuned to various notes and lyrics but the text was lost and purely instrument rhythm left.
Taking its name from the poem Yongbieocheonga that says that trees with deep roots do not sway, the series tells the story of a royal guard ( played by Jang Hyuk ) investigating a case involving the serial murders of Korean written language.