Choir

A choir or chorus is a musical ensemble of singers.

A vocal ensemble which sings in a church, or sings exclusively sacred music, is called a choir, whereas an ensemble which performs the non-soloist parts of

A choir or chorus is a musical ensemble of singers.

A vocal ensemble which sings in a church, or sings exclusively sacred music, is called a choir, whereas an ensemble which performs the non-soloist parts of an opera or musical theatre production (or sometimes an oratorio) is called a chorus. For most other ensembles those two words may be used interchangeably. Other equivalent terms, often used in the names of choirs to provide variety, include chorale. There are also terms for more specific types of choir, such as glee club, barbershop quartet, and Madrigal group.