1. Lead singer: Usually, a lead singer leads the whole poem, and is responsible for the beginning and command. The lead singer needs to have a clear and accurate sense of tone and rhythm, as well as a good sense of music and expression.

2. Chorus: All the people who take part in the singing chorus some parts of the poem. The chorus part usually includes the main content of the poem, which requires the chorus to cooperate tacitly and maintain a unified rhythm and tone.

3. Chorus: In poetry singing, sometimes a chorus part is added to enhance the expressive force and richness of music. The backup singer is usually accompanied by some musical instruments or voices to help the lead singer better present.