This collection of Medieval Christmas music has a wonderful mixture of pieces - Hebrew cantillation, Old Saxon readings, plainchant, processional music - with varying countries of origin - Spanish, Provencal, French, Italian, German, English. The net result is a varied program that will appeal even to those not particularly familiar with Medieval music.
The musical instruments are period instruments - rebec, viola da gamba, flutes, recorders, shawm, etc. They are well utilized in the service of the words. The Boston Camerata is, as usual, a well trained choir - the words are clear, the voices blend beautifully.
This can be an excellent addition to your Christmas music collection - one that helps keep Christmas a religious holy day rather than just a civil holiday.