I. Music

1. In modern usage, choir or chorus (from Gk χορός/chorós, Lat. chorus) denotes a company of singers in which the individual both interprets and listens to ¶ “choral music” a cappella or with instrumental accompaniment (Chant and song; Music and musical instruments). Since the early Middle Ages, as the forms of choral music have changed for diverse purposes and functions, choral groups have come together as monophonic or polyphonic choirs of varying …