Erhu, Chinese two-stringed bowed instrument, is a kind of violin (fiddle) with two strings. The erhu sounds similar to human voice, and can imitate many natural sounds such as birds and horse. It is a very expressive instrument, most well-known for playing melancholic tune, but also capable of play merry melody. The erhu often plays an important role in the national orchestras. In the smaller orchestras, there are usually 2 to 6 erhu, in larger ones, 10 with 12. In fact, the erhu plays the same role as the violin in the Western orchestras.
Coolspring, you forgot the Erhu masterpiece- The Moon Reflected in Er'quan (二泉映月), which is composed by the famous Erhu player A Bing. Have you ever listened to the masterpiece?