A detail from "Garden of Earthly Delights" -- A 1500s hybrid of "Where's Waldo," '70s sci-fi and creepy porn.

A team of University of Oxford musicologists, craftsmen and academics are saying their attempts to re-create the musical instruments of Hieronymus Bosch's famous triptych "Garden of Earthly Delights" were, for the most part, unusable. The harp shoved into the lute, for example, was reportedly unappealing to the ear.

Next up: Can you, in fact, finish climbing MC Escher's stairs?