In order to create an atmosphere.

"White Birch" is an emotional fairy tale poem, and the design of the background music can better reflect the emotions in the poem. In this poem, the author cleverly combines the natural scenery with the emotions of the characters, and depicts a warm and sad story with delicate brushwork. The background music is accompanied by soft piano sounds and fading chants, which represent the helplessness of death and the withering of life. This atmosphere conveys the theme of the poem more profoundly.

The background music not only enhances the emotion of the fairy tale, but also enhances the audience's feelings about the poetry. They complement each other and make the poem more full and profound.