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 Fiori Musicali for string orchestra Haka Wahine for brass band Here He has Peace for solo voice and SATB choir Mass No.3 for congregational singing Missa Brevis for SA voices and organ Now Every Child for unison voices