ther compositions for treble or bass haegeum include "Duet No. 31—Tasting for the haegeum of the generation", by Yi Seong-cheon, "Watercolor for quartet", by O Ui-hye, "Neungge variations", by Bak Seung- ryul, and "Ensemble for the modified haegeum-Dongsim", by Kang Eun-gu.