
The erhu is known as the "Chinese violin," although it has a hexagon-shaped box for a sound body and only two strings. These strings are tuned in a fifth, and are the same as the two middle strings of the violin. Unlike a violin, there's no fingerboard--the player presses the string between his or her fingers.
We went to YouTube to see an example of erhu playing. We saw a dignified older gentleman playing and then found something really exciting. An eight-year-old girl played an astounding "horse racing" piece that was completely riveting. I'll bet she's been practicing hours a day since she was old enough to hold the bow.