Bohuslav Jan Martinů was a Czech composer of modern classical music. He 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 briefly studied under Czech composer and violinist Josef Suk. After leaving Czechoslovakia in 1923 for Paris, Martinů deliberately withdrew from the Romantic style in which he had been trained. During the 1920s he experimented with modern French stylistic developments, exemplified by his orchestral works Half-time and La Bagarre. He also adopted jazz idioms, for instance in his Kitchen Revue.

A symphony is an extended musical composition in Western classical music, most often for orchestra. Although the term has had many meanings from its origins in the ancient Greek era, by the late 18th century the word had taken on the meaning common today: a work usually consisting of multiple distinct sections or movements, often four, with the first movement in sonata form. Symphonies are almost always scored for an orchestra consisting of a string section, brass, woodwind, and percussion instruments which altogether number about 30 to 100 musicians. Symphonies are notated in a musical score, which contains all the instrument parts. Orchestral musicians play from parts which contain just the notated music for their own instrument. Some symphonies also contain vocal parts.