Both poems and lyrics follow the ancient practice: rhyme is rhyme. For example: The Red Army is not afraid of the difficulties of the expedition.
Thousands of rivers and mountains are just waiting for leisure.
The five ridges are meandering and the waves are flowing, and the Wumeng is majestic.
The golden sand and water are warm at the end of the clouds,
The iron cables across the Dadu Bridge are cold.
I am even more happy about the thousands of miles of snow in Minshan Mountain.
The three armies are all happy after the passing.
Rhymes: difficult, leisure, pill, warm, cold, Yan. Generally speaking: I don’t care about one, three or five, but two, four and six are clear!
Rhythm is meter. Metrical poetry must pay attention to level, obliqueness, and antithesis. There are specific and clear requirements, and no breakthroughs are allowed. In addition, the lyrics must be filled in according to the word brand! For example: "Bu Suanzi", "Die Lian Hua", "Qin Yuan Chun", "Man Jiang Hong", "The Proud Fisherman", "Sixteen Character Order"... all have a fixed number of words and a fixed format! That’s why it’s called Metric! Ping and Ze are also difficult for modern people to understand. Not only the first and second tones are Ping, but also the third and fourth tones are Ping! In ancient times, there was a word for entering the tone, which is a bit like the modern soft tone, short and light. If you look up this in a special reference book for ancient books, you can't really understand half of the sentence!
For example: a five-character quatrain, if it is Pingqi, it is: Pingpingpingzheze, 黄仄廄平平.
廄廄廄廄平平,平平平廄廄.
Seven words Pingqi: Ping Ping Ping Ping Ping Ping Ping,
Ping Ping Ping Ping Ping Ping Ping.