According to his official North Korean biography, Kim Jong Il initiated “an epochal change in the history of the modern opera” by introducing an offstage song called a pangchang—an innovation, claims the bio, “greater than the discovery of the heliocentric theory by Nicolaus Copernicus or the discovery of the New World by Christopher Columbus.”

Michel de Montaigne’s father believed “it disorders the tender brains of children to awake them by surprise in the morning, and suddenly and violently to snatch them from sleep”; he preferred to rouse his son from slumber “by the sound of some instrument of music,” likely an early form of harpsichord called an epinette. Montaigne recalled later that he “was never without a musician for that purpose.”

Born on Lesbos around 700 BC, Terpander, a master of the kithara, was summoned to Sparta during a period of civil strife—an oracle had suggested bringing the “Lesbian singer” to help—and organized the city-state’s earliest civic music culture. Immensely popular there, he later returned for what was to be his last performance. While he was playing, a fig thrown by an adoring fan went directly into his mouth. Terpander choked on the fruit and died.

Irving Berlin composed most of his songs in F-sharp major; the six sharp notes in the scale meant he could play the black keys of the piano almost exclusively. Eventually, for purposes of technical variety, he had a lever mechanism installed that allowed him to modulate into other keys without changing his playing.