However, as a poem, classical poetry requires a wide range, the number of sentences is not very rigid, and the rhyme can be changed at any time. But modern poetry has strict requirements on these, and every sentence will have strict rules. In particular, it emphasizes the use of flat tones, which has certain rules and so on. Therefore, later generations used to call this kind of poem metrical poetry. It feels a bit like an eight-part essay. I don't know what you think.
In fact, there are still many changes in the form and style of Tang poetry, which can be said to have the function of connecting the past with the future. It not only inherits the tradition of the previous dynasty, but also develops the singing style. There are many such themes, not only five-character and seven-character poems, but also long narrative systems. Especially about modern poetry, this is also a "breakthrough" in the Tang Dynasty, which can be said to have developed China's culture to a peak. This situation is also loved by many literati. In fact, if you want to know more about Tang poetry, you might as well read more poems of Tang poets, especially those of famous artists.
For example, Li Bai's Into the Wine, Du Fu's Autumn Wind Breaking the Cottage, and Bai Juyi's Song of Eternal Sorrow all have strong literary value.