In the Jonathan Creek episode Judas Tree, what was the music which played over the Adam Klaus clip?

In the latest episode, right at the end (in the last 5 minutes), Jonathan looks at a clip on his laptop of Adam Klaus. The clip has been doctored so Klaus's costume has been changing from that of a wizard to that of a member of the Ku Klux Klan. Anyway, what is the music which plays over the top of this clip?