Live Performance and Praetorius' Polychorality

"Praetorius' music stems from a tradition of congregational involvement which is at the core of Lutheranism. Although his output includes some of the most elaborate sacred repertoire of the time, most of it is skilfully written to allow for the inclusion of the various musical groups that took part in music within the church: town waits, school children, the Collegium Musicum of amateur musicians, and the professional Kantorei. ...In addtion, Praetorius offers advice regarding the displacement of the musicians, who were frequently positioned around the church, especially in galleries. This basic polychorality allows the music to envelop the congregation in the act of worship." - Paul McCreesh and Robin A. Leaver