The concert will be based around Frank Martin's glorious Mass for Double Choir, with the concert being structured like a service with the movements from Martin's mass interspersed with the other works, so that the Rheinberger motet and Elgar partsong form the Introit, Charles Ives provides the psalm setting, the Lassus motet is in fact a setting of the gospel text, Howells's lovely, early Salve Regina is the offertory and William Harris's double choir anthem is the communion motet. The concert finishes with Bach's motet Lobet den Herrn as a choral voluntary.