Doskvol has fantastic buskers in many parts of town, but when you get to the darker corners, where people starve and beg supernatural evils for strength to survive, this is the sort of performer that gets paid on the corners.
The fangwheelers know how to augment certain requests and rituals using their peculiar instruments. Everyone who picks up a fang wheel and plays it feels a strange tug, and to play it well, you have to let go of some things.
Experienced players are missing eyes, teeth, fingers, ribs, sometimes entire limbs. It is a hungry instrument. But it hunts well for those who command its tones.
https://www.facebook.com/boredpanda/videos/10154620069124252/
There is also the Daxophone (some call it a Devilphone) said to be played with the carved tooth of a Leviathan. https://www.youtube.com/watch?v=L6JIFZTcDk0&feature=share