Ansermet, Ernest (ĕrnĕstˈ äNsĕrmĕˈ) [key], 1883–1969, Swiss conductor. For several years he was a high-school mathematics teacher. He began his conducting career in Germany and toured with Diaghilev's Ballets Russes from 1915 to 1923. In 1918 he founded the Orchestre de la Suisse Romande in Geneva and remained its director until 1967. Ansermet was noted for his interpretations of modern French and Russian music, especially Debussy and Stravinsky, and made many concert tours. He also composed several short pieces.