Yuefu: Originally the official name in charge of music in the period of Emperor Wu of the Han Dynasty, it later became a poetic name. Music songs collected and created by Yuefu officials in the Han, Wei, Southern and Northern Dynasties are called Yuefu for short. Poems written by poets in Wei, Jin and Tang Dynasties later became Yuefu, although it was not enjoyable. For example, Lyle songs, Mulan poems and short songs (Cao Cao). The titles of Yuefu poems are "Song", "Xing", "Yin", "Qu" and "Yin". The style of Yuefu poetry is a variant. After the Han and Wei Dynasties, there were many Yuefu poems with the theme of "Song" and "Xing". Although the names are different, there is no strict difference between them. They all mean "song" and their syllables. Poets in the early Tang Dynasty wrote Yuefu poems. In addition to inheriting the old Yuefu of the Han, Wei and Six Dynasties, a few poets created a new Yuefu. Although it is called Yuefu, it is not limited to temperament, so it is called New Yuefu. This kind of poetry has been greatly developed by Li Bai and Du Fu. For example, Du Fu's "Sad Chen Tao", "Ai Jiang Tou" and "Second Way", as well as many works by Bai Juyi, the difference between Yuefu and Gexing has been discussed in the poems of Song Dynasty, and its essence lies in: Yuefu is in harmony, and Gexing comes from Yuefu, but the writing style is more fluent. Today, there are many studies here. Japanese Matsuura thinks that Yuefu has more third person and Gexing has more first person, so Gexing (especially Li Bai) is more wonderful in expressing emotions. On the origin of ci, it is necessary to talk about Yuefu.
2. As for the later generations, Yuefu usually used the ancient people's glasses to pour their own pieces before the upcoming famous works, but ordinary songs did not.
3. Yuefu focuses on the form of expression, and the lines of songs focus on the metrical form, focusing on differences and overlapping.
4. After the masterpieces of Lao Du and Xin Yuefu, the difference between them is even more ugly: generally speaking, Yuefu must tell others about its personnel, which can be used as an allegorical reading, and the scope of singing has already included Yuefu and others.