The Circle of Fifths - E. G. Stone - Bog

Just when I thought my day couldn't get worse, I am accidentally summoned in Death's place...
My name is Cal Thorpe, and I am in the middle of learning to live a life after the return of my wayward soul. My emotions are a mess and I will start weeping at the sight of an empty bowl of popcorn. Then, my cousin Baz and I are accidentally summoned by a punk band who managed to get their hands on a recipe for summoning Death. Now, they want my help to get rid of a curse lingering at a music festival. Before I can protest, Baz agrees and I'm stuck helping out a band with really terrible music.
While investigating this mess, I discover that there's more going on than just a simple curse. And it would appear I'm at the centre of it all. Someone's out to get me, and if I don't undo this curse, then it won't just be me in harm's way, it will be a whole lot of innocent people.

As always, things go downhill from there.