Four-part documentary series in which Simon Russell Beale explores the flowering of Western sacred music. Beale takes us back to Tudor England, a country in turmoil as monarchs change the national religion and Roman Catholicism is driven underground. In telling the story of Thomas Tallis and William Byrd, two composers at the centre of England's own musical Renaissance, Beale visits parish churches, great cathedrals and a private home where Catholic music would have been performed in secret.