In the formation of metrical poems, rhyme is not gradually abandoned, but only leveled, regardless of yin and yang. The last rhyme can't be changed halfway, and a rhyme can only rhyme. The last word of every even sentence rhymes. The last word of a sentence is called foot, so rhyme can also be called rhyme foot. The first sentence of a metrical poem can rhyme or not, and whether the first sentence rhymes or not is generally related to the antithesis. The first couplet is antithesis, and the first sentence often doesn't rhyme.
The so-called "rhyme" is actually the pronunciation of language. The purpose of our rhyming is to make our poems more catchy by using words with similar pronunciation. The first sentence of a metrical poem may or may not rhyme. If it rhymes, it can be adjacent to it. If you don't rhyme, even the sentences must rhyme, and rhyme to the end. The last words of the third, fifth and seventh sentences can only rhyme, and the rhyming words cannot be repeated in the poem.
Rhyme skills of ancient poetry
Although ancient poetry rhymes, poets don't always rhyme. For example, the fourteenth song of Li Bai's ancient style uses rhyme alone and has no rhyme. It is particularly important to note that rising and falling tones can sometimes rhyme, but flat tones cannot rhyme, and entering tones cannot rhyme with other sounds. Take the word "hail" for example, it is also a tone, and it is a rhyme. Yao Jue is an adjacent rhyme, which may be related to Yao Yun.
The rhymes of ancient poems vary from time to time. The actual pronunciation has changed, and the rhyme is not so strict. The rhyme was slightly wider in the middle and late Tang Dynasty, and the ancient charm was wider after the Song Dynasty. Although ancient poems can rhyme to the end, they can also rhyme and rhyme several times. There are many ways to change rhyme: every two, four, six sentences, or as many as a dozen; You can use two rhymes, two rhymes, or alternate rhymes.