The following specific analysis:
Yuefu poetry refers to the poems of the Han Dynasty collected and preserved by the music authorities during the Western Han Dynasty and the Eastern Han Dynasty, and passed down from there. The poems in charge of Han Yuefu are divided into two parts: one is the song of the ruler's ancestor worship and the song of the court banquet, which is the same as the "ode" and "elegance" in the Book of Songs; The other part is a collection of folk music without a name, which is called Yuefu folk songs internationally, which is equivalent to the "wind" in the Book of Songs. People called it "Song Poetry" in Han Dynasty and "Yuefu" or "Han Yuefu" in Wei and Jin Dynasties. Poems written by later scholars imitating this form are also called "Yuefu Poems".
Yuefu poems have various forms, including three words, four words, five words, six words and miscellaneous words, among which the most commonly used ones are new miscellaneous words and five-word poems. Yuefu folk songs in Han dynasty have no fixed rules and syntax, and their length is arbitrary, which is scattered among the people. One of the few works has four words, such as Crossing the River without Gong and Doing Good, and seven words, such as Autumn Dew and Haoli. Yuefu miscellaneous language, in an article, the sentence pattern and the number of words are different, some are scattered as a whole, and some are composed of one to ten words, which are flexible and changeable. For example, The Orphan's Journey is a cross-sentence. The Eighteen Songs of Song Dynasty are all miscellaneous words. The five-character style in Yuefu is very neat, which is a new creation of folk songs in Han Yuefu. Such as Peacock Flying Southeast, Mulberry on the Stranger, Joining the Army in the Fifteenth Five-Year Plan. There is no doubt that rich and diverse forms help to express complex ideological content.
Most of the existing Yuefu poems are works of the Eastern Han Dynasty. The sentence pattern is dominated by miscellaneous words and five words, and the language is fresh and lively, which is longer than narrative, laying the foundation for China's ancient narrative poems.