[1] Jeokbyeokga has many scenes depicting conflict between the king, feudal lords and a commander, so the singer must have the capability of making grand vocalizations.
The basic plot of Jeokbyeokga is from the 14th century novel Romance of the Three Kingdoms by Luo Guanzhong.
[1] It starts when characters Liu Bei, Guan Yu, and Zhang Fei take an oath by blood to become brothers at Dowon.
Those come from deoneum which have been slowly made over a long period of time by the singers of pansori.
The Jeokbyeokga altered the consistent grand and sublime atmosphere, adding the humorous expressions.