Jacques François Antoine Marie Ibert (15 August 1890 – 5 February 1962) was a French composer. Having studied music from an early age, he studied at the Paris Conservatoire and won its top prize, the Prix de Rome at his first attempt, despite studies interrupted by his service in World War I.
Ibert pursued a successful composing career, writing (sometimes in collaboration with other composers) seven operas, five ballets, incidental music for plays and films, songs, choral works, and chamber music. He is probably best remembered for his orchestral works including Divertissement (1930) and Escales (1922).
As a composer, Ibert did not attach himself to any of the prevalent genres of music of his time, and has been described as an eclectic. This is seen even in his best-known pieces: Divertissement, for small orchestra is lighthearted, even frivolous, and Escales (1922) is a ripely romantic work for large orchestra.
In tandem with his creative work, Ibert was the director of the Académie de France at the Villa Medici in Rome. During World War II he was proscribed by the pro-Nazi government in Paris, and for a time he went into exile in Switzerland. Restored to his former eminence in French musical life after the war, his final musical appointment was in charge of the Paris Opera and the Opéra-Comique.
Ibert was born in Paris. His father was a successful businessman, and his mother a talented pianist who had studied with Antoine François Marmontel and encouraged the young Ibert's musical interests. From the age of four, he began studying music, first learning the violin and then the piano. After leaving school, he earned a living as a private teacher, as an accompanist, and as a cinema pianist. He also started composing songs, sometimes under the pen name William Berty. In 1910 he became a student at the Paris Conservatoire, studying with Émile Pessard (harmony), André Gedalge (counterpoint) and Paul Vidal (composition). Gédalge also gave him private lessons in orchestration; Ibert's fellow-students at these private classes included Arthur Honegger and Darius Milhaud.