What do ancient poems, metrical poems, quatrains and Yuefu mean? What is the difference?

Classical poetry is a saying in the Tang Dynasty, which refers to a style of poetry handed down from ancient times, also called ancient style. Generally speaking, its rhyme is not strict with the number of words and levels.

Rhyme, on the other hand, is a poetic style, which was formally formed in the Tang Dynasty. Its handwriting is neat and even, and it must rhyme.

Among them, the rhyme is 5 or 7 words and 8 sentences, but sometimes it can also be called rhyme or rhyme.

There are four quatrains, and the most common one is quatrains, which is half of metrical poems. But there are also ancient times.

Yuefu is a poetic style formed in the Han Dynasty, which is related to the folk songs at that time. Later, Bai Juyi advocated "New Yuefu" in the Tang Dynasty.