Changes

The music played in the level is a famous piece of classical music for the piano, Ravel's ''Gaspard de la Nuit - Le Gibet''. (Video of [http://www.youtube.com/embed/VBgwk98ZPuI 3PQ-H1PjrWQ that composition here].) This was first revealed in the following video; the backwards playing begins around the 0:38 mark.