Smelling the flute in Los Angeles on a Spring Night is a four-line poem written by Li Bai, a poet in the Tang Dynasty. This poem expresses the homesickness caused by the flute when the author stayed in Luoyang in the dead of night. The first two sentences describe that the flute spread all over Luoyang with the spring breeze, and the last two sentences describe that he was homesick because he smelled the flute.
In this nocturne, the willow is broken, and no one can afford to be homesick. In the poem, "folding willow" means parting, which is a metonymy. "Who doesn't remember his hometown" means who doesn't remember his hometown? Rhetorical devices of rhetorical questions are used.