Wang San Ak, who lived in the period of Koguryo Kingdom (B.C. 277-A.D.688), made contributions to national musical development by improving and performing musical instruments and creating musical pieces.

A legend says that notes of instruments played by him were so beautiful that cranes gathered and danced over him.

Uruk, active as a musical composer and performer and educator in the early 6th century, invented Kayagum, a national musical instrument, and popularized it in the country.

He created a lot of Kayagum tunes and brought up musicians.

Pak Yon was a musical theorist and instrumentalist in the early period of the Ri Dynasty (1392-1910). He collected native Korean musical pieces, invented 12 tunes suitable for national rhythms, and made and improved musical instruments. He compiled "Sejong Musical Characters", a full orchestral score, and others to systematize in a theoretical and practical way Korean music in the middle age.