CHORUS, in Music, a composition of two, three, four, or more parts, each of which is intended to be sung by a plurality of voices. Choruses are made to follow a piece of music sung by one individual, or in parts by single or at least only a few voices, and, as it were, bring to a climax the joy, adoration, grief, or any other sentiment or passion therein expressed. The choruses of Handel, particularly those in his oratorio of the "Messiah," are considered as
the finest compositions of the kind, and, when well performed with complete orchestral accompaniments, produce the most triumphant effect of which music is capable. Chorus is also applied to those who sing the parts.