Stravinsky turned his attention to completing his first opera, the Nightingale (usually known by its French title Le Rossignol), which he had begun in 1908 (that is, before his association with the Ballets Russes). The work had been commissioned by the Moscow Free Theatre for the handsome fee of 10,000 rubles. and he completed Le Rossignol at Leysin on 28 March, 1914.