Soul Music Corgi Audio Books 1996 ISBN 0-552-14424-X

Other children get given Xylophones. Susan just had to ask her grandfather to take his vest off.
It’s hard to grow up normally when Death is your grandfather-especially when you have to take over the family business and everyone mistakes you for the Tooth Fairy. And especially when you have to face the new and addictive music that has entered Discworld. It’s called Music With Rocks In. It’s got a beat and you can dance to it, but…it’s alive. And it won’t fade away.