Wind.

The "wind" in "The Book of Songs" comes from the folk and is a collection of folk music from all over the world. The voices of the people and a true portrayal of life. The music style, lyric content, expression methods, etc. are closely connected with folk life and have strong local characteristics and folk customs. Folk music works were passed down orally and preserved after being collected and compiled, becoming an important part of the Book of Songs. "Wind" is the part of folk music in The Book of Songs.