There are seven words and five words, and the form of modern poetry is relatively free and open. For example, Goddess written by Guo Moruo is a free poem, and there is no limit to the number of words, level and rhythm. Characters can be roughly divided into three categories: (1) poem; (2) alto; (3) Long tune. Some people think that Yuan Qu is divided into zaju and Sanqu, with 59-90 characters as the middle tune and 9 1 characters as the long tune. Sanqu is also called "Qingqu" and "Today's Yuefu". It has three basic types: poems and sets of numbers, and the overtones between them. The so-called Xiao Ling, also known as "Ye Er", got its name from the Liquor Order in the Tang Dynasty. Its basic feature is that there are only songs and few short words in a single article. But there is another kind of couplet, also called "poems with the same topic", which is composed of several poems. These poems should be consistent in theme and tone, relevant in content, and syntactically consistent from beginning to end. Each poem can rhyme independently, up to 100. According to Ghost Record, Georgie sang two poems of the West Lake 100, and was the oldest person to write short poems. As for the "set number", it is also called "set", "scattered set" or "big order", which is developed from Daqu in Tang and Song Dynasties and Gongdiao in Song and Jin Dynasties. Its customization generally has three characteristics: first, the whole set must rhyme consistently; Second, there is an end; The third is composed of more than two songs with the same palace tune. The divertimento expresses relatively complex content with its long length, either lyrical, narrative or both. Poems and sets of numbers are two main forms of Sanqu, one is short and pithy, the other is rich and graceful, but in addition, there is another one with music. Band songs are composed of different tunes in the same palace tune, such as Yaner's "Winning by Picking Tea", "Scolding" and "Grateful for Huang En", with no more than three tunes at most. The lead singer belongs to the ditty group, which is much smaller than the number of sets and has no ending. He is just a special form between poetry and sets of numbers.