In 2014 Amelia Hamrick, an undergraduate at Oklahoma Christian University, noticed musical notes written across the buttocks of one of the denizens of hell depicted in Hieronymus Bosch’s painting The Garden of Earthly Delights. She transcribed it into modern notation and made a recording she posted on her blog. “So yes,” she wrote, “this is literally the 600-year-old butt song from hell.” The post went viral.

Paul Wittgenstein, brother of Ludwig, lost his right arm in combat during the First World War. Wishing to continue playing the piano, he commissioned one-handed works from esteemed composers, including Benjamin Britten, Sergey Prokofiev, and Maurice Ravel, insisting, for some, on having exclusive lifetime performance rights.

The medieval Occitan troubadour known as the Monk of Montaudon was a master of the enueg, “song of annoyance.” “I can’t stand a long wait,” he complains in one composition, written around 1200, “Or a priest who lies and perjures himself / Or an old whore who is past it, / And—by Saint Delmas—I don’t like / A base man who enjoys too much comfort.” The song goes on in this fashion for nine more verses.

Researchers working with the Tsimané of the Amazon found that tribe members could tell the difference between consonance and dissonance but took them to be equally pleasant, giving credence to the idea that Western preference for consonance is not biological. “The Greeks were really into ratios,” speculated the lead researcher. “It’s possible they started making music that way and we’ve been stuck with it ever since.”