Song is a literary genre that focuses on emotion. It reflects social life in a lyrical, highly concise and concentrated way, using rich imagination, rhythmic and rhythmic language and the form of line arrangement. Express thoughts and emotions. Poetry is a rhythmic, rhythmic and emotional language art form. It is also the oldest and most basic literary form in the world. Poetry originated from ancient social life. It is a rhythmic and emotional language form produced by labor production, sexual love, primitive religion, etc. "Book of Rites. Yushu": "Poetry expresses aspirations, songs chant words, the sound is eternal, and the rhythm is harmonious." "Book of Rites. Yue Ji": "Poems express aspirations; songs chant their sounds; dance means movement. Its content is that the three originate from the heart, and then the musical instruments follow it. "In the early days, poetry, song, music and dance were integrated. Poems are lyrics, and they are always sung in conjunction with music and dance in actual performances. Later, poetry, song, music, and dance developed independently and became independent entities. Poems and songs are collectively referred to as poetry.