Question: what instrument is used in avatar the last airbender?
Answer: In the series, a duduk is the sound of the tsungi horn (pictured)- an in-universe instrument. Other instruments that are both heard and seen in the series include the pipa, the veena, the ruan, the luo (gong), the erhu, the dungchen, the liuqin, the zheng, the yueqin, the zhong, and various types of flutes.