This is a mesmerizing work that folds time in on itself, beautifully blending old and new. To mark the establishment in Cappella Pratensis’ Dutch hometown of ‘s-Hertogenbosch of the centuries-old Illustrious Brotherhood of Our Blessed Lady (whose members included Hieronymus Bosch), Antony Pitts created a double-choir version of his Missa Unitatis (the work can be performed by a single or double choir). On this superb recording, Cappella Pratensis are joined by the Nederlands Kamerkoor under conductor Stephen Layton. The music, just for voices, sounds both ancient and modern, and speaks powerfully to the 21st-century listener.