The Yaos cherish a magnificent oral literary tradition. As mentioned above, singing forms an indispensable part of their life. When a group of people are opening up wasteland, one or two selected persons stand aside, beating drums and singing to enliven the work. Young males and females often sing in antiphonal tones all through the night. Their songs are very pleasant, rhyming and affecting and with a very deep emotional content. For example, some of the folk songs are beautiful love songs, others recount the history of the Yao people, add to the joyous atmosphere at weddings, synchronize working movements, tell legends about the creation of heaven and the earth, ask meaningful questions with each other or tell humorous stories. In many of them, the words have been passed down from generation to generation.