The Venetian polychoral style was a type of music of the late Renaissance and early Baroque eras which involved spatially separate choirs singing in alternation. It represented a major stylistic shift from the prevailing polyphonic writing of the middle Renaissance, and was one of the major stylistic developments which led directly to the formation of what is now known as the Baroque style. A commonly encountered term for the separated choirs is cori spezzati—literally, "broken choruses" as they were called, added the element of spatial contrast to Venetian music. These included the echo device, so important in the entire baroque tradition; the alternation of two contrasting bodies of sound, such as chorus against chorus, single line versus a full choir, solo voice opposing full choir, instruments pitted against voices and contrasting instrumental groups; the alternation of high and low voices; soft level of sound alternated with a loud one; the fragmentary versus the continuous; and blocked chords contrasting with flowing counterpoint.

A choir is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform or in other words is the music performed by the ensemble. Choirs may perform music from the classical music repertoire, which spans from the medieval era to the present, or popular music repertoire. Most choirs are led by a conductor, who leads the performances with arm, hand, and facial gestures.