(b Moscow, 27 April 1861; d Moscow, 21 May 1926). Russian composer and theorist of French descent. While studying mathematics at the universities of Moscow and Berlin, he also took private piano lessons from Karl Klindworth (1830–1916), from whom he inherited his Wagnerian sympathies. He later studied with Lyadov and Rimsky-Korsakov in St Petersburg. His first compositions won the approval of Tchaikovsky in 1886; together with Wagner, Tchaikovsky became a major influence on his music, though Catoire was most accomplished in the field of chamber music. He is best remembered as a professor at the Moscow Conservatory (from 1917) who contributed significantly to the development of Russian music theory through his books on harmony and musical form.
From The Oxford Companion to Music in Oxford Reference.