The German Embassy in London’s musical advent calendar:

Probably the best musical online Calendar on the web, this year’s German Embassy Advent Calendar is packed with ultra-modern arrangements of traditional German Christmas Carols. We are delighted to present a musical Xmas feast with a whole range of different musical styles and interpretations, performed by professional musicians.

(Via Keys Corner)

And Cécile Blumenbär and Chris Rowson (translator) in Dresden, who are Rare Roses: Der himmlische Schall a CD (and there is a separate booklet with all the texts) – first of all, the familiar German Christmas carols, 27 of them, to sing along to, then some Christmassy concert pieces:

Der himmlische Schall” is in two parts. The first contains a selection of the enchanting music of the German Christmas tradition. Some are lovingly decorated with variations, others presented with evocative simplicity.
Festive concert pieces of the European Baroque form the second part. The mystical voice of the flute combines with the varied sounds of the digital harpsichord to conjure the sounds and spirit of Christmas.

You can hear some of their music on their website, or you can buy it in their online shop, or you might be lucky and be given it, like me.