What is the name of the first sentence or sentences of an ancient poem? What was the first song?

In ancient poetry, the first sentence or two is called "the first couplet", the third sentence is called "the couplet", the fifth sentence is called "the neck couplet" and the seventh sentence is called "the tail couplet".

1. Rhyming

Metric poems originated from Shen Yue's new style poems which paid attention to meter and duality in the Qi Yong period of the Southern Dynasty, and began to appear in the early Tang Dynasty. During the Wu and Zhou Dynasties, Shen Quanqi and Song created the Narrow Seven Laws, which matured in the middle and late Tang Dynasty. Rhyme requires the unity of the number of words in the poem, and each poem is five words and seven sentences, referred to as five laws and seven laws for short. Ordinary metrical poems stipulate that each poem has eight sentences, and more than eight sentences, that is, more than ten sentences, are called parallel sentences or long sentences. Usually eight sentences are used to complete a poem, and every two sentences are connected into a couplet, which counts as four sentences. The habit of the upper and lower sentences of each two or three-sentence couplet is antithesis. Except for the first pair and the second pair, the couplet in the middle must be a couplet. Rhyme requires the whole poem to rhyme, and rhyme is usually balanced; The second, fourth, sixth and eighth sentences rhyme, and the first sentence can be taken or not. Allow the rhyme in a broad sense to lose its adhesion, and not in a narrow sense. There are two types: "Qi Qi" and "Pingqi". In addition, the metrical requirements of metrical poems also apply to quatrains. Generalized metrical poems are very inclusive, allowing irregularities and three ends to exist.

Second, the conjunction of law and poetry.

Every two sentences of a metrical poem is a couplet, which is quadrupled with * * *. The first couplet (the first sentence and the second sentence) is called couplet, the second couplet (the third sentence) is called couplet, the third couplet (the fifth sentence) is called neck couplet, and the fourth couplet (the seventh sentence) is called tail couplet. Metric poems are twice as big as quatrains, so you can write more things or scenes and express more detailed emotions. "scattered in the whole, often changed, neat and tidy, and rich in content"; "The five laws are short, straightforward and powerful, and the seven laws are smooth, melodious and elegant. Rhyme is difficult to write because it is flat and smooth, rhyming and antithetical.

Third, examples.

1, Song Dynasty's Tour of Shanxi Village

Don't laugh at the farmhouse music brewed in the muddled month. In the harvest month, the dishes for guests are very rich. Shoulian

There is no way to go because of the winding water flow in the mountains, and a mountain village suddenly appears in the willow-green flower bay. Lines 3 and 4 of Lushi (Rhyme)

Xiao Gu followed the Spring Club and dressed simply and quaint. The fifth and sixth lines form a couplet.

In the future, if you can go out in the moonlight, I will knock on your door at any time with my cane. Tail joint

2. Don Cui Hao's Yellow Crane Tower

The fairy of the past has flown away by the yellow crane, leaving only an empty Yellow Crane Tower. Shoulian

The yellow crane never revisited earth, there have been no long white clouds for thousands of years. Lines 3 and 4 of Lushi (Rhyme)

Every tree in Hanyang has become clear due to sunlight, and Nautilus Island is covered with sweet grass. The fifth and sixth lines form a couplet.

But I looked at my hometown, and the twilight was getting thicker, and the mist of sadness was filled on the river waves. Tail joint

3. Don Li Shangyin's "Jinse"

I want to know why my Jinse has fifty strings, and each string has a youthful interval. Shoulian

Zhuangzi daydreaming, a saint, was bewitched by butterflies, and cuckoo crowed in the imperial spring. Lines 3 and 4 of Lushi (Rhyme)

Mermaids shed pearl-like tears on the moon-green sea, and the blue fields breathed their jade to the sun. The fifth and sixth lines form a couplet.

A moment that should last forever has come and gone before I know it. Tail joint

4. "Autumn Night in the Deep Mountains" Wei.

The empty mountains are bathed in a new rain, and feel the early autumn at night. Shoulian

The bright moon shed clear light from the cracks and cleared the fountain on the rocks. Lines 3 and 4 of Lushi (Rhyme)

The bamboo forest is sonorous, the washerwoman returns, and the lotus leaves are swaying to get on the canoe. The fifth and sixth lines form a couplet.

Spring spring might as well give it a rest, and the autumn sun can stay on the hills for a long time. Tail joint

5. Tang Menghao's "Passing the Old Village"

This old friend prepared a delicious meal and invited me to his hospitable farm. Shoulian

Green Woods surround the village and green hills are located outside the city. Lines 3 and 4 of Lushi (Rhyme)

Open the window facing the valley vegetable garden and pass the glass to talk about crops. The fifth and sixth lines form a couplet.

Please come here to see chrysanthemums when the ninth festival comes. Tail joint