Kim Cheontaek was a poet and compiler of anthologies who worked during the reins of King Sukjong (肅宗 r.1674-1720) to King Yeongjo (英祖 r.1724-1776) in the late Joseon period. He was a gagaek (歌客 professional singer-poet) who emerged at the end of the seventeenth century who collected historically important sijo (時調 literally Contemporary Tune; Korean traditional poetry). He compiled the Cheongguyeongeon (靑丘永言 Songs of Green Hills) in 1728 because he was wary of the disappearance of the Korean song. He also wrote about eighty poems that focused on the themes of longing to leave life to take its natural course, displaying pride in his music, and explaining social-class conflicts.
LTI Korea 
DLKL 
SIWF 