There are seven poems, entitled "Dancing from the Army ○ Pipa for a New Sound". What role does the word "always" play in poetry?

Seven Poems of Joining the Army (Part Two) (Wang Changling)

The new sound of pipa dance is always the old love.

I can't listen to endless worries, and the high autumn moon shines on the Great Wall.

(1) What role does the word "always" play in poetry?

(2) Some people say that "the moon shines on the Great Wall in high autumn" is a stroke of genius. Do you think so? Please talk about your reasons.

Reference answer: (1) plays a turning point. No matter how the timbre and tune of pipa change, it is inseparable from the content of homesickness, which shows that homesickness is hard to get rid of.

(2) Generally, poetry always writes about scenery first, then feelings, but the first three sentences of this poem are lyrical, and then the scenery is written. The description of the scenery further highlights homesickness and makes the whole poem look tragic and open.