Chorus means two or more groups of singers singing two or more parts of a song at the same time.

1. The meaning of chorus

Chorus refers to the artistic category of collective singing of multi-part vocal works, often with a conductor, with or without accompaniment. It requires a high degree of unity of the sound of a single part and the harmony of the melody between the parts. It is one of the most popular and widely participated forms of music performance. The number of voices is not specified, generally there are four voices. Mostly in the tenor area, baritone area, soprano area, and female alto area.

2. Vocal requirements for chorus

Chorus includes simultaneous chorus, mixed chorus, turn, lead, duet, as well as harmony, branch, and polyphony. A collective singing art with or without accompaniment. Common choruses include simultaneous chorus (male, female, and children's voices), mixed chorus (male and female voices, children's and male and female voices), and singing forms include unison, rotation, two-part, three-part, four-part chorus, and a cappella chorus.

Chorus has the characteristics of wider vocal range, longer breath, greater intensity and more timbres. A good chorus should be balanced and harmonious. The balance of the chorus depends on the volume of the voice and the balance of the timbre. The coordination of the chorus depends on the harmony and pitch of the voices. Mixed chorus is generally a mixture of male and female voices, such as soprano SOPRANO, alto ALTO, tenor TENORE, and bass BASS.