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Choir, Latin chorus (although its more distant origins in the Greek language), is the set of people who sing together in a musical performance, and at the same time the same musical piece.
Examples: "Valerie singing in the choir of the Church', 'Canadian artist has arrived in the country with its musicians and a choir of ten members'"after instrumental introduction, the choir will have to start singing the first verse.
Choir, which is synonymous with choir, is therefore a vocal ensemble that plays a piece in a coordinated manner. Usually, the chorus is composed of different types of voice (I.e., voices with different stamps).
In a professional choir, soprano voice is responsible for the main melody being accompany mezzo-sopranos, the altos, tenors and baritones. The most common formation of a choir consists of sopranos, altos, tenors and basses.
It is possible to categorize the choir in different ways. A Sung chorus a cappella is the one who has no instrumental accompaniment, while the concert choir is accompanied by instruments.
The choir, according to its members, can be a mixed vocal Quartet (with four singers, one per range), a byte (double a mixed Quartet), a Chamber Choir (which has between ten and twenty singers) or a symphonic choir (more than twenty members).
A choir is also a piece of music with diatonic melodies and simple rhythms or a monodic song that develops in the liturgy of the churches (such as Gregorian chant). This term is also used to designate the piece of a song performed by a group of singers ("the structure of the theme includes three verses, a chorus and three other verses and the repetition of the chorus").