Đàn bầu

Đàn bầu
A woman is playing the đàn bầu during the water puppet show. Next to her is a man playing the đàn nguyệt.
Other namesmonochord, độc huyền cầm

The đàn bầu (Vietnamese: [ɗàːn.ɓə̀w]; "gourd zither"; Chữ Nôm: 彈匏), also called độc huyền cầm (獨絃琴, "one-string zither"; the name is only used by the Jing ethnicity in China) is a Vietnamese stringed instrument, in the form of a monochord (one-string) zither.