Erxian

The erxian (二弦; pinyin: èrxián; literally "two string") is a Chinese bowed string instrument in the huqin family of instruments. It has two strings and is used primarily in Cantonese music, most often in "hard string" chamber ensembles. In the 1920s, following the development of the gaohu, the erxian experienced a decline and since the late 20th century has been little used outside the tradition of Cantonese opera.

The erxian (called yi6 yin4 二弦 in Cantonese) is often referred to as the yizai (二仔) amongst older Cantonese opera musicians. The neck of most erxian is made of hardwood (often suanzhi (酸枝, rosewood) or zitan (紫檀, rosewood or red sandalwood). The sound chamber is made of a large section of bamboo with a dome-shaped ring of hardwood glued on the front end, making the actual playable face of the chamber about half the size of the entire face. The back of the sound chamber is not covered with any lattice work like those of erhu or gaohu. Erxian can be found with very ornate dragon heads, ruyi (如意) heads, or a very plain box-cut stock head. Earlier erxian very closely resembled the jinghu of Beijing opera in size, construction, and playing technique.