"toward Glinka, Schumann and Beethoven's late quartets". Mendelssohn was not thought of highly, Mozart and Haydn "were considered out of date and naïve", and J.S. Bach merely mathematical and unfeeling. Berlioz "was highly esteemed", Liszt "crippled and perverted from a musical point of view ... even a caricature", and Wagner discussed little. Rimsky-Korsakov "listened to these opinions with avidity and absorbed the tastes of Balakirev, Cui and Mussorgsky without reasoning or examination". Often, the musical works in question "were played before me only in fragments, and I had no idea of the whole work". This, he wrote, did not stop him from accepting these judgments at face value and repeating them "as if I were thoroughly convinced of their truth". Rimsky-Korsakov became especially appreciated within The Five, and among those who visited the circle, for his talents as an orchestrator. He was asked by Balakirev to orchestrate a Schubert march for a concert in May 1868, by Cui to orchestrate the opening chorus of his opera William Ratcliff and by Alexander Dargomyzhsky, whose works were greatly appreciated by The Five and who was close to death, to orchestrate his opera The Stone Guest. In late 1871, Rimsky-Korsakov moved into Voin's former apartment, and invited Mussorgsky to be his roommate. The working arrangement they agreed upon was that Mussorgsky used the piano in the mornings while Rimsky-Korsakov worked on copying or orchestration. When Mussorgsky left for his civil service job at noon, Rimsky-Korsakov then used the piano. Time in the evenings was allotted by mutual agreement. "That autumn and winter the two of us accomplished a good deal", Rimsky-Korsakov wrote, "with constant exchange of ideas and plans. Mussorgsky composed and orchestrated the Polish act of Boris Godunov and the folk scene 'Near Kromy.' I orchestrated and finished my Maid of Pskov." Professorship, marriage, inspector of bands In 1871, the 27-year-old Rimsky-Korsakov became Professor of Practical Composition and Instrumentation (orchestration) at the Saint Petersburg Conservatory, as well as leader of the Orchestra Class. He retained his position in active naval service, and taught his classes in uniform (military officers in Russia were required to wear their uniforms every day, as they were considered to be always on duty). Rimsky-Korsakov explained in his memoirs that Mikhaíl Azanchevsky had taken over that year as director of the Conservatory, and wanting new blood to freshen up teaching in those subjects, had offered to pay generously