He later accepted a post at the Vienna University in 1875, where he tried to make music theory a part of the curriculum. Overall, he was unhappy in Vienna, which was musically dominated by the critic Eduard Hanslick. At the time, there was a feud between advocates of the music of Wagner and Brahms; by aligning himself with Wagner, Bruckner made an unintentional enemy out of Hanslick. He was not without supporters, though. "Deutsche Zeitung"'s music critic Theodor Helm, and famous conductors such as Arthur Nikisch and Franz Schalk constantly tried to bring his music to the public, and for this purpose proposed "improvements" for making Bruckner's music more acceptable to the public. While Bruckner allowed these changes, he also made sure in his will to bequeath his original scores to the Austrian National Library in Vienna, confident of their musical validity.