Soul Music is the sixteenth Discworld novel by Terry Pratchett, first published in 1994. Like many of Pratchett's novels it introduces an element of modern society into the magical and vaguely late medieval, early modern world of the Discworld, in this case Rock and Roll music and stardom, with near disastrous consequences. It also introduces Susan Sto Helit, daughter of Mort and Ysabell and granddaughter of Death.