What is the relevant information about singing in ancient poetry?

The definition of "Gexing" is a genre of China's ancient poems, which was established on the basis of Yuefu poems in Han, Wei and Six Dynasties in the early Tang Dynasty. The appearance of "Moonlit Night on a Spring River" by He Zhang can be said to be a sign of the formal formation of this genre. Xu Shi, a writer in the Ming Dynasty, once explained "Song", "Xing" and "Xing Ge" in "Distinguishing Poetic Style" as follows: "A long lyricist, miscellaneous and ignorant, speaks songs; The pace is rushing, and those who are sparse and not sluggish will do it; Part-time workers are singing. " "Ci Hai" Note: "Xing" means joy; Although the names of "Song" and "Xing" are different, there is no strict difference. Later, "Song and Xing" merged into one. Representative works are named after songs: Bai Juyi's Song of Eternal Sorrow, Bai Xuege's Farewell to Tian Shuji Wu's Home, Du Fu's Song of Autumn Wind Breaking the Cottage, etc. Named after "Xing": Bai Juyi's Pipa Xing, Du Fu's military vehicle shop, etc. Named after "Gexing": Gao Shi's Yan Gexing. Features 1. The length can be short or long. There are eighteen sentences in Cen Can's Bai Xuege Farewell Field-Attendant Wu Comes Home, twenty-four sentences in Du Fu's Autumn Wind Breaking the Cottage, and one hundred and twenty sentences in Bai Juyi's Song of Eternal Sorrow. There are thirty-seven sentences in Du Fu's Military Vehicle Shop and eighty-eight sentences in Bai Juyi's Pipa Trip. Second, the narrative characteristics of ancient Yuefu are preserved, and the characters, remarks, comments and feelings are integrated into one, and the content is full and vivid. For example, Du Fu's "Car Shop" contains the narration of "pedestrians" when they go out to war, the question and answer between "passers-by" and "pedestrians", and the sigh that "we have learned that it is unlucky to have a son, but it is much better to have a daughter". It's really devastating after reading it. Another example is "The Hut is Blown by Autumn Wind", which contains a description of the hut blown by the wind, a sigh of "leaning on a stick when returning", and even "there are ten thousand spacious houses in Qian Qian. . . My strong lyricism and desire to freeze to death alone made me embarrassed after reading it. Third, the rhythm and rhyme are relatively free, flat and informal, and you can change rhyme. " Metric poetry breaks through the shackles of metrical poetry in meter. Because it takes a long time to express feelings and there are many sentences, it is difficult to pay attention to balance when it rhymes to the end. For example, there are some rhymes in the twenty-four sentences of "The Hut is Broken by Autumn Wind". The form of singing style is relatively free, which is determined by the content. Fourth, the sentence structure is flexible, usually seven words, some of which are mainly seven words, and three words, five words and nine words are interspersed. For example, "The Hut is Blown by Autumn Wind" is basically composed of seven words, but there are also two words ("Alas") and nine words ("Suddenly seeing this house in front of me, it is enough for me to freeze to death alone"). Yuefu Poetry in Han Dynasty The so-called Yuefu in Han Dynasty refers to a musical organ. It not only makes poems praising literati into music scores to play new songs and dances, but also collects folk songs as music. "History of Han, Art and Literature" records: "Since Emperor Xiaowu established Yuefu, there has been a trend of Zhao, Qin and Chu, all of which are sad and happy, and they are also caused by things. "This also enriches the music of Yuefu Entertainment. In the Six Dynasties, Yuefu changed from the name of an organ to a poetic name with music. The difference between them is that Yuefu poetry is an integral part of ancient poetry, and Yuefu poetry after Han and Wei dynasties often takes "Song" or "Xing" as the topic. Although the two names are different, there is no strict difference. Later collectively referred to as "Gexing Style". It has been said: "Songs originated from Yuefu, but they refer to things and chant things ... in a more free form". The language is popular and fluent, and the text is relatively spread. " Lines "means" music ". Of course, it belongs to ancient poetry, because ancient poetry refers to 1840 China's poems before the Opium War. From the perspective of meter, ancient poetry can be divided into ancient poetry and modern poetry.