Stile Antico's program centers on Thomas Tallis's magnificent seven-part Christmas Mass, based on the festive plainchant Puer natus est ('A boy is born'). The mass is interspersed with seasonal Tudor music, including William Byrd's exquisite Propers for the fourth Sunday of Advent, responsories by Taverner and Sheppard, Robert White's exuberant setting of the Magnificat, and Tallis's own sublime Videte miraculum.