What is the music playing in reverse on the Whimsyshire level?
I've noticed that the music in the Whimsyshire level appears to be playing in reverse.
Can anyone confirm this? If so, is it music from another level or a famous piece or a unique song being played in reverse?
There's a section in the Diablo Wiki (includes videos) about that:
The music played in the level is a famous piece of classical music for the piano, Ravel's Gaspard de la Nuit - Le Gibet.