Through Zhé, or songs, one can express interpersonal communications, the natural environment and various emotional states. They also contain sayings as well as literature patterns that represents the essence of traditional literature. Tibetan songs have many types such as folk songs, love songs, working songs, antiphonal style songs, humor songs, etc… Songs can be also divided geographically such as Amdo folk songs, Kham folk songs, U-tsang folk songs, Nangma and Dechen folk songs. Generally song lyrics are composed in four six word stanzas. In some part of Kham, performing song and dance simultaneously is also referred to as Zhé.