Huqin is a family of string instruments of Chinese traditional instrumental music. In a typical Chinese orchestra, string instruments usually are the Erhu(Terra), Gaohu(Terrin) and Zhonghu(Terron). Those three types of huqins serve 3 different ranges of pitches, like how violin and viola did in a symphony orchestra, but in huqin, they separate into three ranges.
To start knowing huqin, I would like to introduce Erhu(Terra) first before the other two.
Erhu(Terra) looks like this.
It has only two strings, inner and outer. The bow(horse tail) is placed between the strings. The Qianjin(waxed woolen thread) resembles the neck of violin, it acts as the starting point and limiter of the open string length. There's a small bridge on the vibrating skin (Python's skin) called..... bridge, it serves the same purpose as in violin. And the body of the Erhu, usually a hexagon one-end-closed tube, is the resonance box.
The process of making it sound is generally like this:
1. The bow(horse tail) with rosins on rubs the string.
2. String vibrates and the vibration is transmitted to the bridge.
3. The bridge vibrates, and the vibration spreads across the surface of the vibrating skin.
4. The skin vibrates, it resonates the air in the resonance box.
5. The resonance box concentrates and amplifies the sound, and then directs it out of the window,hence the sound is produced.
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