Winterbloom is Meg Hutchinson, Antje Duvekot, Anne Heaton and Natalia Zukerman. Asia Kepka hide caption

itoggle caption Asia Kepka

Carla's Christmas Carols, by Carla Bley, is sometimes sweetly and majestically unironic. The odd bits give it a sense of mystery that suits the holy day, but is rare in Christmas music. courtesy of the artist hide caption

itoggle caption courtesy of the artist

The vocal group Trio Mediaeval sings old and new Christmas carols from its native Norway in NPR's Studio 4A. Asa M. Mikkelsen hide caption

itoggle caption Asa M. Mikkelsen