Anton Bruckner (4 September 1824 - 11 October 1896) was an Austrian composer known for his symphonies, masses, and motets. The former are considered emblematic of the final stage of Austro-German Romanticism because of their rich harmonic language, complex polyphony, and considerable length. Bruckner's compositions helped to define contemporary musical radicalism, owing to their dissonances, unprepared modulations, and roving harmonies. Unlike other radicals, such as Richard Wagner or Hugo Wolf who fit the enfant terrible mold, Bruckner showed extreme humility before other musicians, Wagner in particular. This apparent dichotomy between Bruckner the man and Bruckner the composer hampers efforts to describe his life in a way that gives a straightforward context for his music. His works, the symphonies in particular, had detractors, most notably the influential Austrian critic Eduard Hanslick, and other supporters of Johannes Brahms, who pointed to their large size, use of repetition, and Bruckner's propensity to revise many of his works, often with the assistance of colleagues, and his apparent indecision about which versions he preferred.