[Short review from memory until I re-read and re-review at a later date: 
 Well, Death, and those beggars, but little else. Music with Rocks in it... C-M-O-T Dibbler, but really I don't recall much else. I hadn't quite got around this one in my re-read a few years ago, so it might take a while but it's Discworld and it's PTerry, so what else.]