Complex sentence: He was also admired as an interpreter of Beethoven, Brahms, Bruckner, and Mahler, and made notable concerto recordings with violinist Nathan Milstein, pianist Arthur Rubinstein, and pianist Rudolf Firkusny.
Split into simpler sentences: He was also admired as an interpreter of Beethoven, Brahms, Bruckner, and Mahler. Steinberg was an able accompanist and made notable concerto recordings with violinist Nathan Milstein, pianist Arthur Rubinstein, and pianist Rudolf Firkusny.