Sophie-Carmen Eckhardt-Gramatté (Russian: Софи Кармен Экхардт-Граматте; 6 January 1899 in Moscow, Russia – 2 December 1974 in Stuttgart, Germany) was a Russian-born Canadian composer and virtuoso pianist and violinist.She was born as Sofia (Sonia) Fridman-Kochevskaya in Moscow, where her mother worked as a governess in the Tolstoy household. She began to learn piano in 1904 and wrote her first piano compositions in 1905. She studied at the Conservatoire de Paris from 1908-1913, where her teachers included Alfred Brun and Guillaume Rémy for violin, S. Chenée for piano, and Vincent d'Indy and Camille Chevillard for composition.