lt;正gt; In the history of Chinese music, the prosperity of music culture in the Sui and Tang Dynasties, in addition to the basic condition of the development of folk music and art that is consistent with economic development, it is also extremely important to integrate a large number of foreign music One of the reasons. The most obvious example is the nine-part music and ten-part music of the Sui and Tang Dynasties. The so-called nine-part music and ten-part music of the Sui and Tang Dynasties all refer to the parts of court music. Each piece has its own proper name due to its different musical content. According to "Sui Shu·Music Part 2", the nine music divisions of the Sui Dynasty recorded "In the great cause, Emperor Yangdi settled in Qingyue, Xiliang, Qiūzi, Tianzhu, Kangguo, Shule, Anguo, Gaoli and Libi. It is thought that there are nine parts. "Among them, Qingyue refers to the folk music of the Han people; Indian music; Goryeo refers to Korean music; and Libi means "nine pieces of music are played every time, and they are played in the end, so it is named Libi." (