The eoeungeum (RR) or ŏŭn-gŭm (MR) () is a stringed musical instrument invented and played in North Korea. It is between the size of a mandolin and a mandola, and commonly has four single strings. It is a development in the 1960's from the traditional Korean instrument called hyangbipa.https://atlasofpluckedinstruments.com/far_east.htm#korea Atlas of Plucked Instruments: Korea
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