Nikolai Medtner (5 January 1880 [O.S. 24 December 1879] – 13 November 1951) Russian composer and pianist. A younger contemporary of Sergei Rachmaninoff and Alexander Scriabin, he wrote a substantial number of compositions, all of which include the piano. His works include fourteen piano sonatas, three violin sonatas, three piano concerti, a piano quintet, two works for two pianos, many shorter p..