Thanks for that. It takes me back to the glory days of English folk-rock in the 70s.
By the way, Maddy Prior did a lovely album of Christmas music with The Carnival Band in 1987, called Tapestry of Carols. It's a collection of ancient Christmas carols from around Europe. The Carnival Band play replicas of medieval period instruments. If you like traditional carols, and/or are sick of the slick, commercial Christmas stuff, check this out.