Even lines rhyme
Rhymed verses have 2,468 lines that rhyme, and quatrains have 24 lines that rhyme. Regardless of the verses or quatrains, the first line can rhyme or not. For example:
To Judge Han Chuo of Yangzhou (Du Mu)
The green mountains are faint and the water is far away, and the grass and trees in the south of the Yangtze River are withered in autumn.
On a moonlit night at the Twenty-Four Bridge, where can a beautiful lady teach me how to play the flute?
The first two and four sentences rhyme. Another example:
Deng Le Youyuan (Li Shangyin)
Xiang Wan felt unwell and drove to Guyuan.
The sunset is infinitely beautiful, but it’s almost dusk.
The first sentence does not rhyme, but the second and fourth sentences rhyme. Generally speaking, it is common for the first line of a five-character poem to not fall into rhyme, and it is common for the first line of a seven-character poem to fall into rhyme. Regarding the rules for whether the first sentence rhymes with flat tones or not, please refer to the simple table of flat tones ④
Only rhyme with flat tones
Modern style poetry stipulates that only rhymes with flat tones can be rhymed. This is almost a dead rule. In fact If the style of modern poetry mentioned above is written in oblique tones, it would be very awkward to pronounce, so the ancients could consciously abide by this rule. There is no counterexample in my memory that can be used for reference, so I won’t give another example here.
One rhyme to the end
You cannot change the rhyme in the middle. Ancient poetry (ancient style) allows rhyme changes midway, but modern poetry does not allow this.
The rhyme of the first sentence can be borrowed from adjacent rhymes
In the rhyme of ancient poetry, rhymes from adjacent rhymes, such as Yidong and Erdong, Sizhi and Wuwei, can be mixed in
>Used together, it is called Tongyun. However, the rhyme of modern poetry must strictly only use words in the same rhyme part. Even if the number of words in this rhyme part is very small (called narrow rhyme), it cannot be mixed with words from other rhyme parts, otherwise It is called rhyme, which is a taboo in modern poetry. But if the first sentence rhymes, you can borrow the adjacent rhyme. Because the first sentence can be pledged or not, it can be accommodating. For example, "Drunken in the Army and Sent to Eight Liu Sou":
The wine thirsty loves Jiang Qing, and Yugan rinses the evening tea.
Sit firmly on the soft sand, and wake up drunk on the cold stone.
The picnic is accompanied by a tent, and the Chinese pronunciation is from Ling.
After a few cups, you have been sent to Shen Ming.
The "Ting, Xing, Ling, Ming" in this stanza are all called Jiuqing, but the first sentence borrows the word "Qing" from Ba Geng.
This is called borrowing neighbor rhyme. It became popular in the late Tang Dynasty and even formed a trend in the Song Dynasty.
I am very happy to answer your question and hope to adopt it!