The Austrian baritone Florian Boesch sings with an immediacy that can make more mellifluous baritones sound overcultivated. His performances of the 24 songs of Schubert’s Winterreise strike a chord of desolation seldom matched. He’s one of those artists who never repeats. Each journey is his first journey, each winter his last. In Malcolm Martineau, Boesch has a partner who listens and responds every step of the haunted way. —Matthew Gurewitsch