Bohuslav Jan Martinů was a Czech composer of modern classical music. Martinů wrote 6 symphonies, 15 operas, 14 ballet scores and a large body of orchestral, chamber, vocal and instrumental works. He became a violinist in the Czech Philharmonic Orchestra, and taught music in his home town. After leaving Czechoslovakia in 1923 for Paris, Martinů deliberately withdrew from the Romantic style in which he had been trained.