A particular type of the synthetic music machines mentioned throughout the classic dystopian novel, Brave New World, by Aldous Huxley, 1932. It's also referred to as a "Super-Wurlitzer." The real-world Rudolph Wurlitzer Company has made pianos and organs since the 1880s. It seems to still be thriving in year AD 2540 (or, 632 A.F.—"After Ford") of the novel.
It's the only one of the machines mentioned by such a specific brand or model name. It's used at the Park Lane Hospital for the Dying, "a sixty-story tower of primrose tiles," and plays the song "Hug me till you drug me, honey."