Dante's Circle - An Elliott Smith Mystery, #4

Dante Benevetti is the darling of the music world.and why not? He's handsome, talented-and arrogant as only a man convinced of his own brilliance can be. As far as he's concerned, the rest of the world exists for his benefit. So, when he hears Dante is dead, a victim of murder, Elliott isn't really surprised. Nor is he surprised when Dante comes for a post-mortem visit, demanding Elliott find out who killed him.
Was it the well-known lyricist who was the only one in the house at the time? The talented young musician whose work Dante plagiarized? Or some unknown the great pianist had mortally offended?