I absolutely cannot recognize the current Korean theme in Age of Empires II as Korean traditional music.
The developers did not conduct sufficient research on actual Korean traditional music.
So I have a proposal:
Please replace the Korean theme with this one.
This piece was historically performed during the Joseon era (1392–1863) whenever the Korean king went on a royal procession or when the army marched.
If you replace it with this music, Korean players will be absolutely thrilled.
ps.
Before the music begins, the leader commands, “Myeong-geum-il-ha! Daechuita harapsinda!”
(which means: “Sound the golden drums! Begin the Daechuita!”)