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.