Tang's many forms. The ancient Tang Dynasty poetry, there are basically two kinds of Wuyan and Seven. There are two recent poems, called quatrains, a known verses. Quatrains and the verses they have the different Five Characters and Seven. So basically the basic forms of Tang poetry that six: Five Characters ancient poetry, Seven ancient poetry, Wu Yan, quatrains, Seven quatrains, Wu Yan, verses, Seven verses. Ancient poetry of the relatively wide phonometrics requirements: one among the number of sentences can be more or less, short or long chapters, rhyme can be converted. Modern Style Poetry phonometrics more stringent requirements: a poem a limited number of sentences, that is denied, 4, verses 8, each sentence with the word tone, sound poetry, a certain degree of regularity, rhythm can not be converted; verses also called intermediate 4 as antithesis. The style of ancient poetry was handed down from the previous generation, so called weathering. There are strict and close to the metrical poetry, it was also called Classical Poetry.