Please help me to analyze the paragraph about "level and oblique" in the appreciation of Jiang Kui's "The First Preface of Nishangzhong", if you know anything about level and oblique in ancient poems.

Please help me to analyze the paragraph about "level and oblique" in the appreciation of Jiang Kui's "The First Preface of Nishangzhong", if you know anything about level and oblique in ancient poems. Upstairs, there is no analysis of the meter.

It doesn't seem right to have an exposition without analyzing the meter upstairs.

The First Preface of Nishang Zhongxue (霓裳中序第一) by Jiang Kui (姜夔)

平平仄仄(韵)。

Tinggao is looking at the pole,

Nonconformity is flat and level (rhymes).

It is not yet possible to return to the river.

They are the most important of all, and they are the most important of all, and they are the most important of all.

It's sick, but I'm not strong enough,

They're not narrow, they're not narrow, they're not narrow.

When the fan is thinning out, and the clothes are getting loose.

They're not narrow, they're not narrow, they're not narrow.

They're just a few days old, and they're just a couple of days old, and they're just a couple of days old.

They are flat and narrow, narrow and narrow, narrow and narrow, narrow and narrow.

Where are the people? A curtain of pale moon, as if shining colors.

Flat and oblique (rhymes), oblique and flat (rhymes).

Silence, chaotic grasshoppers chanting on the wall,

Non oblique oblique flat oblique (rhyme).

Movement of Yu Xin's clear sorrow like weaving.

They are the most important of all, but the most important of all is that they are the most important of all.

Thinking about his youthful wanderings, the flute in the mountains, the willows under the streets.

Non leveling, non leveling, non leveling, non leveling, non leveling.

Falling red without information, diffuse dark water trickle slippery blue.

Flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat, flat.

It's been a long time since I've been away from home, but what do I want to do now? I've been a drunken shopkeeper.

The above content each line is the top of the flat and narrow, and the bottom is the content of the word. I'm not sure if the owner is familiar with some of the basics of meter, but if he is, there is no point in explaining it, and if he is not, I'll just say a few words. In short, the level tone is equivalent to the first and second tones of modern Chinese, while the oblique tone is equivalent to the third and fourth tones of modern Chinese, but it is not absolutely so, for example, the character "入声", which belonged to the oblique tone in ancient times, has disappeared nowadays, and has been assigned to the four types of tones of modern Chinese, which is difficult to recognize. The first of the Nishang Zhongxue is a word that rhymes with incipient tones. Generally speaking, words that rhyme with incipient tones are mostly used to express feelings of melancholy and frustration, or strong feelings of passion (such as Nian Nujiao, Rain Raindrops, Man Jianghong, Hexinlang, and The King of Orchids, etc.). The use of argot is a major feature of the present poem, and the two climaxes, as mentioned in the "Introduction to the Arts," are typical argot in terms of the two lines, especially in the latter part of the lines. In particular, the second half of these two sentences is written in the typical argosy style of "仄仄平仄"(律句 should be "仄平平平仄"), which is generally considered to be the most effective way to reflect the author's stirring feelings. I don't know if I can help you find some feelings by skimming these sentences.

Additionally, the word "Buddha" is pronounced in the second tone today, but in ancient times it was an incoming tone, so of course it belongs to the oblique tone. Please read my previous analysis carefully. In addition, in ancient times, there were only four tones, no light tones, so please don't use modern Mandarin to apply the ancient tones.