How to divide Bai Juyi's Song of Eternal Sorrow from the perspective of rhythm?

Seven-character style is a special style, which was first created by Cao Pi, a native of Wei Wendi. It is a poetic genre that can be sung with music. The number of general sentences is uncertain, and the number of words in each sentence is fixed. The words "Song" and "Xing" are very common in poetry titles. The characteristic of songs is that they don't pay attention to meter, which makes the poet's creative interest come. Expressing feelings, the number of sentences is unlimited, which can be said to be a "freestyle" poem with neat sentences. First of all, we should read more poems and understand the basic structure and characteristics of the seven laws. We should know the meter and rhythm of parallel lines. The two couplets in the middle should be couplets. Two \ four \ six \ eight sentences should rhyme, and the first sentence should rhyme (with adjacent rhyme). It is suggested to learn seven sentences first and then seven rhymes. Sanlian dictionary is a good reference book, giving examples of parallel lines word for word.