He composed "Aegukka" — the national anthem of the country — and "Song of General Kim Il-sung", in addition to revolutionary operas.

[5] By 1947, when "Aegukka" was adapted as the national anthem of Provisional People's Committee of North Korea,[10] he had risen in status.

[6] Other compositions by Kim include: "Democratic Youth March", "Our Supreme Commander", "Glory to the Workers' Party of Korea (WPK)", "Sunrise on Mt.

[11] It is possible that he worked on the operatic version of Sea of Blood and a symphony based on music from the opera.

[16] Besides his musical activities, he was a deputy to the ninth and tenth Supreme People's Assemblies (SPA).

[5] Upon his death in 2002, he held the posts of deputy to the SPA and adviser to the Central Committee of the Korean Musicians Union.