Work Mass For Unity for congregation and keyboard Year: 1966 · Duration: 8m Year: 1966 Duration: 8m John Ritchie Composer Composer: John Ritchie About Work About Commissioned note Commissioned by Auckland Roman Catholic Diocese Related tags Sacred Audience Participation Related works Concerto for Alto Saxophone for E-flat saxophone and small orchestra Five William Blake Songs of Innocence for high voice and guitar Introduction and Allegro for euphonium and piano Missa Brevis for SA voices and organ Then Laugheth The Year for SATB choir, strings and 2 pianos Winter and Rough Weather for SAB chorus and piano