The Norwegian composer
Knut Nystedt grew up in a Christian family, where hymns and classical music were part of everyday life. Among roughly 300 choral compositions, which account for three quarters of his works, he wrote several pieces of sacred music, including
De Profundis, Op. 54, a 1966 setting of
Psalm 130, and
Immortal Bach for five choirs, based on Bach's "
Komm, süßer Tod". He composed the Missa brevis in 1984. It was first published by Roberton Publications (later named Norsk Musikkforlag) in 1985, and again by
Carus-Verlag in 2003. == Structure and music ==