Vikkan Lantry, a pianist with more talent than ambition, is content with his job at an upscale cocktail lounge until a request from reclusive soprano, Ulrike Vogel, draws him grudgingly back into the world of classical music. Ulrike s mysterious past, and her friendship with elderly Viennese piano teacher, Dieter Mann, usher Vikkan into an intrigue that begins in the nineteenth century with an unknown song cycle composed by Robert Schumann, and ends in the present-day with a grisly double murder. As Vikkan probes the layers of deceit obscuring a killer s identity, The Schumann Proof...