Then the sentence pattern is more flexible.
As for the five-character poems and seven-character poems in the prosperous Tang Dynasty, there are strict regulations and restrictions.
The popularity of five-character and seven-character poetry was mainly determined by the status of poetry at that time. Poetry at that time was used to sing with music. If the whole article is nine words or even eleven words, without five words and seven words, a song is difficult to sing, even if it is sung, it is not beautiful. On the contrary, for example, the style of singing can be long or short, but it is basically five or seven words, which makes people feel more natural and sound. But it's hard to spread. There are probably many poems with nine words and eleven sentences, but they are difficult to pass down from generation to generation. For example, Li Bai has many styles of songs, and the sentence pattern is not rigid, occasionally mixed with nine or even eleven words, but the main words are seven or five, and sometimes three or even one word jumps out.
As for the five or seven-character poems such as "Thinking about a Quiet Night", they seem to be metrical, but they are actually archaic. It is because of the need of singing that the metrical five-character seven-character poem finally prevails instead of the ancient five-character seven-character poem. If all the words are flat or all the rhymes at the end are mixed, it's really ugly. That's why there is such a statement.
At the same time, we can also see that another reason why nine-character poems and eleven-character poems can't be popular is that they are too difficult to pay attention to the balance of sound and rhyme, and it is difficult to spread through the ages without paying attention to the balance of sound and rhyme.
At least we are also typing word by word with human flesh input method. Comrades who ask questions must read it, or I will live in vain. ...