Nanyin is a performing art that combines singing and playing, and is one of the oldest existing types of music in China. Nanyin is sung in Quanzhou dialect, and is mainly played with instruments such as pipa, dongxiao, erxian, sanxian, and clappers. The music is written in five Chinese characters: "乂工六思一". The more than 3,000 existing ancient music scores preserve different categories of music from the Jin Dynasty (265-420 AD) to the Qing Dynasty (1644-1911 AD). The music style is elegant and delicate. Its singing form, instrument shape, palace tune melody, music score and notation method are unique, providing rich historical information for the study of ancient Chinese music. Nanyin is a cultural heritage cherished by the general public in the relevant communities.