Featuring some very old traditional Christmas music:
Anúna - Mariam Matrem Virginem
"Long before Christianity took hold in Scotland and Ireland, the ancient Celts celebrated the Winter Solstice and the coming of light and hope. The echoes of Paganism still resounded in the 13th and 14th centuries, when faithful Scots sang the Vespers of St. Kentigern, Patron Saint of Glasgow. This celebration of Celtic artistic traditions, created by Jeannette Sorrell and Sylvain Bergeron, interweaves selections from the medieval Vespers of St. Kentigern with ancient pagan carols and popular tunes from 17th-century Welsh and Scottish manuscripts for lute and harp."
Apollo's Fire - Noël nouvelet from Sacrum Mysterium: A Celtic Christmas Vespers, Pt. 5/9
Noël nouvelet / 15th century French/Breton carol, Oxford English text
Coventry Carol - Clamavi De Profundis
A Canadian Christmas hymn based on a French folk song with original lyrics written by St John de Brebeuf, SJ, sung by the Canadian Tenors. Also called Twas in the Moon of Wintertime.