二胡

The erhu (Chinese: 二胡; pinyin: èrhú), also called nanhu (南胡, "southern fiddle"), and sometimes known in the West as the "Chinese violin" or "Chinese two-string fiddle," is a two-stringed bowed musical instrument, used as a solo instrument as well as in small ensembles and large orchestras. It is the most popular instrument in the huqin family of Chinese bowed string instruments, together with the zhonghu, gaohu, banhu, jinghu, sihu, and numerous others. Used in both traditional and contemporary pieces, it is a versatile instrument.

Features:
simple and free play style, even a new comer can learn how to play this instrument easily;
four optional tones;
5 predefined tuning methods;
interesting portamento effect;