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 Ergo Tua Rura Manebunt for SATB choir, flute, 4 trumpets, 4 trombones and strings Fanfare For Lincoln for brass band Five William Blake Songs of Innocence for high voice and guitar Here He has Peace for solo voice and SATB choir Serpent of Brass for cornet and piano Zhivago's Mary Magdalene Songs for voice and piano