“The last of the old great masters of song” has been a term used to describe the German baritone Benjamin Appl. Hailed for his “sensitive legato,” Appl has performed in both opera and recitals around the world in such stages as Ravinia, Rheingau, Schleswig Holstein, Edinburgh International, Life Victoria Barcelona, Leeds Lieder, Oxford Lieder festivals, and Festspielhaus Baden-Baden, among others. {…}