I can't account for perhaps all of it but the majority and probably what you are most interested in was by Lemon Jelly. They have an annoying habit of not having any names or details on their cd covers but the most common tracks (used throughout the BBC too) are In the Bath and His Majesty King Raam. The CD I refer to is the collection of the Bath, the Yellow and the Midnight EPs and was relased in 2000.