On November 5, 1605, Guy Fawkes was caught preparing to detonate 36 barrels of gunpowder under the House of Lords, unveiling and act of attempted treason that shocked the whole of Europe.Commemorating the 400th anniversary of the Gunpowder Plot, the King's Singers and Concordia illuminate the dangers of hearing Mass in secret, of conspiracy and downfall, and the protestant relief and great joy. The music, structured around Byrd's perfect 4-part Mass, contains motets by catholic composers, protestant anthems celebrating the downfall of the plot, and a commission from the British composer, Francis Pott, Master Tresham: His Ducke. A script, drawing on historic texts and reproduced in the CD booklet, uses the dramatized persona of William Byrd, the most celebrated composer of his age, to recreate the atmosphere of change and hope in the Jacobean court.