As one of the biggest stars in jazz in the 1920s, Fats Waller was in high demand. Based in New York City, where he’d been born and raised, Waller played multiple instruments, but he was especially renowned for his innovations on the piano. He practically invented the Harlem stride style, which was rhythmic and jaunty and, when Fats played it, sounded as if multiple pianos were playing at once.

