In the Variations on Old Psalm-Tunes for Organ, Dyson fully explores the composer’s chosen sources: ‘Hard, the glad sound’ from Ravencroft’s Psalter (1621), Orlando Gibbons’s Song 24 ‘O word Immortal’ and Song 5 ‘O Prince of Peace,’ and ‘I was glad’ from the Scottish Psalter (1615). These works are popular for service voluntaries.Twentieth century composer and educator George Dyson was a writer of ambitious and critically well-received works that, due to their unfashionably accessible, late Rom...