The content of Yuan Qu is very rich, but as a poetic category of Sanqu (including short lyric, daiguo qu and song cycle), its alias is "e;Ciyu"e;, which is closely related to Ci, having long and short sentences in sentence pattern and certain rules in rhythm. The difference is mainly in their linguistic feature, "e;Ci is elegant music, Qu is vulgar word"e;. It should be said that compared with Ci, Qu suits both refined and popular tastes, it is closer to the contemporary language style, reflecting more about the actual life of the people and popular aesthetic taste. However, compared with the number of lyric lovers, the number of composers is relatively small, and they basically follow the rules of Bei Qu. The important reason is that both "e;filling in lyrics"e; or "e;making music"e; must "e;rely on sound"e; and music score. The expression of various music scores represented by Kangxi Music Score is often the traditional mode of "e;one tune and one score"e;. However, there are many styles of Qupai with same names, which makes people confused. Based on Kangxi Music Score, Taihezheng Music Score, Beici Guangzheng Music Score, Xinding Jiugong Dacheng Nanbei Ci Gongpu and Quanyuan Sanqu, this music score aims to reveal the internal law of each Qupai by using statistical analysis method, and to provide basis for the creation of Sanqu. The form of "e;Biao"e; is used in the music score. According to the segment of the long and short sentence structure of the Qupai, the format and rhyme of various levels and tones are marked.
