This animated version of the bestselling novel by parody master Terry Pratchett is a cautionary tale about the dangers of Rock Music which in the Discworld is literally Music with Rocks In. A restless harp-playing teenager from the countryside is determined to become the Disc's greatest musician. His prospects look dim, especially after he forms a band with a rock-bashing troll and a horn-playing dwarf. Until, that is, he stumbles upon a guitar with a life of its own and renames himself Buddy. Meanwhile, reeling from big-time job stress, Death takes a holiday, leaving his teenage granddaughter to look after the family business. Like girls all over the Disc, she falls for Buddy, a problem since he's living fast and soon will need her professional attention. But while the beat goes on, no one (almost) is immune to its spell.