The music was composed by Lee Jong-oh and the lyrics were adopted from a poem by national poet Cho Ki-chon (조기천).
[2] The song has also become popular in South Korea, where it is considered to be free of ideology due to its depiction of a love affair between a man and a woman.
[3][4] Its main subject is a man wooing a textile factory worker by whistling regularly at her balcony.
[5] During the 2018 Winter Olympics in Pyeongchang, the song was performed by a troupe of 230 North Korean cheerleaders invited by South Korea in order to help improve diplomatic relations and restore normalized communications.
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