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 Audience Participation Sacred Related works Christmas Day in the Morning for SATB choir Concerto for Alto Saxophone for E-flat saxophone and small orchestra Kelvin Grove for TBB choir and piano Praise (Psalm 150) for accompanied SSA choir Sweet and Sour for solo flute The Snow Goose for flute and chamber orchestra