The Ballad of Perilous Graves

In Nola, an alternate New Orleans where magic runs on music, Perry is a failed magician who knows the city's rhythm better than anyone. When the city's Great Magician starts turning up in strange places and nine songs of power escape from the magical piano that keeps the city's beat, Perry realises Nola will fail without them. He is willing to give up everything to protect it, but a storm is gathering and time may be running out.