What is the theme song of "Autumn Night in a Mountain"?

Landscape pastoral poetry. The types of theme poems are: lyric poems about scenery, poems about things, poems about things, poems about things, poems about nostalgia, frontier poems, farewell poems, poems about homesickness and pastoral poems. Autumn Night in the Mountain is a poem describing the beautiful scenery of the mountain village and the villagers in the evening after the rain in Chu and Qing Dynasties. This was written by Wang Wei, a poet in the Tang Dynasty. So it is a typical pastoral poem. After the rain, the mountains are empty and stand in the autumn night. It means that after the empty mountain was bathed in a new rain, night arrival made people feel that the weather was getting colder and colder, and it was early autumn.