Mass for double choir a cappella

Heinrich Schütz Jauchzet dem Herrn (Psalm 100)
Felix Mendelssohn Richte mich Gott (Psalm 43)
Ralph Vaughan Williams Lord, thou hast been our refuge (Psalm 90)
Charles H. Parry Lord, let me know mine end (Psalm 39)
Frank Martin Messe pour double choeur a cappella