Luke and I were looking at Hieronymus Bosch’s painting The Garden of Earthly Delights and discovered, much to our amusement, music written upon the posterior of one of the many tortured denizens of the rightmost panel of the painting which is intended to represent Hell. I decided to transcribe it into modern notation, assuming the second line of the staff is C, as is common for chants of this era.

so yes this is LITERALLY the 600-years-old butt song from hell