In the Tang Dynasty, the music of various nationalities introduced from the western regions gradually merged with the old music of the Central Plains, and Hu music was the main music that produced Yan music. The original neat five-character seven-character poem is no longer suitable, so there are words with different words and more lively forms.
Ci originated from the folk, and later literati wrote new words according to the rhythm of music score, called "Ci" or "Yin". From then on, the word was separated from music, forming a kind of metrical poem with uneven sentence length. Fifth, the seven-character poem is symmetrical and dual, presenting the beauty of neatness; The words used are mainly long and short sentences, showing uneven aesthetic feeling.
Yuanqu originated from the so-called "Fanqu" and "Le Hu" and was first circulated among the people, and was called "Street Tune" or "Village Square Minor". With the destruction of Song Dynasty in Yuan Dynasty, it spread in the vast areas of north and south, centering on Dadu (now Beijing) and Lin 'an (now Hangzhou). Yuanqu has strict metrical formula, and each qupai has fixed format requirements in sentence pattern, word number, level tone and so on.
There are complicated reasons for the rise and development of Yuanqu. First of all, the social reality of the first generation is the foundation of the rise of Yuanqu. The vast territory, prosperous urban economy, grand theater, active book club and all-weather audience laid the foundation for the rise of Yuanqu. Secondly, the exchange and integration of the cultures of all ethnic groups in the Yuan Dynasty promoted the formation of Yuan Qu. Thirdly, Yuanqu is the inherent law of poetry itself and the inevitable result of the inheritance and development of literary tradition.