Baritone Stephan Genz emerged from relative obscurity in the mid-'90s all the way to international stardom by the early 2000s. Indeed, his London debut at Wigmore Hall in 1997 and American debut three years later at New York's Frick Collection, along with the positive notice he received from several recordings in the late '90s, elevated him to front-rank status. He is primarily known for his lieder interpretations, particularly the lieder of Richard Strauss, Wolf, Beethoven, Schubert, Schumann, Brahms, and Mahler. But Genz often performs on the operatic stage, giving regular a...