Ensemble of national bowed string instruments refers to music played by traditional bowed string instruments like Gaohu, Erhu, Bass Erhu, Zhonghu and Morin Khur.
A harshness in some tones of a bowed stringed instrument produced by defective vibration.
"A large family of bowed string instruments has evolved since the 9th century. They are generically called "hu-qin", while each regional variation is known by a specific term that differs among regions. Examples are "er-hu", "jing-hu", and "matouqin'."