The earliest complete polyphonic settings of the Mass and the Passion that have come down to us are the 14th-century Mass of Tournai from what is now Belgium, and an English St Luke Passion from the early 15th-century ‘Windsor’ Manuscript. Both settings are anonymous and in three-voice polyphony, and the six movements of the Mass of Tournai reflect both the old-fashioned and the more up-to-date practices of ars antiqua and ars nova. The St Luke Passion displays characteristic English sweetness in its harmony, as well as unexpectedly dramatic responses to the events of the 24 hours from the Last Supper to Jesus’s short-lived entombment.