Guzheng, plucked string instrument, also known as Han Zheng and Qin Zheng, is an ancient national musical instrument of the Han nationality, popular throughout China. After thousands of years of development, four major schools of Hakka Zheng, Chaozhou Zheng, Shandong Zheng and Henan Zheng have been formed. [17] It is often used for solo, ensemble, instrumental ensemble and accompaniment of singing and dancing, opera, and opera. Because of its wide vocal range, beautiful timbre, rich performance skills and strong expressiveness, it is known as the "King of Music", also known as the "Oriental Piano", and is one of the unique and important national musical instruments in China.