Mentioned by Ernest Harlow, the father of Kody's love-interest

Apparently he is the boss of Raam, the slaver. 

The Minotaur Guardsman reacts to the name, saying he has a finger in everything shady in many of the larger cities 

Demetrius heard that Muzak supposedly was at Anton Galvani's party during the Harvest Festival, but didn't see him.