Between the late Baroque and the twentieth century, musical literature was enriched by a great variety of choral forms. From the simplest (the Lutheran chorale as practised by Bach, or the chorus a cappella) to the most complex (double choruses, combinations with soloists and orchestra), they are all here in this exhaustive survey drawing on the finest recordings of one of the world's most highly acclaimed choirs, the RIAS-Kammerchor of Berlin.