MacMillan's setting of Psalm 51: 3-21, a penitential text famously set in the 17th century by Gregorio Allegri. Composed in 2009 for The Sixteen and their conductor Harry Christophers, MacMillan's work is scored for a single choir with divisi and soli in each voice-part, and also chanted passages in close harmony for male and then female voices. Suitable for advanced standard choirs.. Difficulty: 4 - advanced