Can music be political? Germans have long claimed the symphony as a pillar of their modern national culture. By 1900, the critical discourse on music, particularly symphonies, rose to such prominence as to command front-page news. With the embrace of the Great War, the humiliation of defeat, and the ensuing economic turmoil, music evolved from the most abstract to the most political of the arts. Even Goebbels saw the symphony as a tool of propaganda. More than composers or musicians, critics were responsible for this politicization of music, aspiring to change how music was heard and...

From the composer's lifetime to the present day, Gustav Mahler's music has provoked extreme responses from the public and from experts. Poised between the Romantic tradition he radically renewed and the austere modernism whose exponents he inspired, Mahler was a consummate public persona and yet an impassioned artist who withdrew to his lakeside hut where he composed his vast symphonies and intimate song cycles. His advocates have produced countless studies of the composer's life and work. But they have focused on analysis internal to the compositions, along with their programmatic...