What do you mean by "Three Stacks in Yangguan"? Three stacks in Yangguan means three stacks.

1. Because there are only four sentences in the whole poem, and the number of words in each sentence is the same, it is a bit monotonous to sing, so musicians often sing the poem repeatedly (several times), hence the name "Yangguan Sandie".

2. According to Su Shi's records in the Song Dynasty, the singing method of Yangguan Triassic is as follows: Weicheng is rainy and dusty, guest house willow, guest house willow; (a stack) advise you to do more with a glass of wine, and advise you to do more with a glass of wine. (A stack) There are no Yangguan people in the west, and there are no Yangguan people in the west. (Three-layer stack)

3, except the first sentence, every sentence is sung once, only to know that the' three folds' of ancient books are like this.