rondo

rondo (rŏn`dō, rŏndō`), instrumental musical form in which the opening section is repeated after each succeeding section containing contrasting thematic material. The complex rondeau of French keyboard music of the 17th cent., related to the poetic form, the rondel, was the most frequently occurring form. It was the predecessor of the 18th-century rondo, which became the usual concluding movement of the classical sonata.

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rondo

Musical form characterized by the initial statement and periodic restatement of a melody alternately with contrasting material. It originated in the French Baroque harpsichord rondeau, where a refrain of 8 or 16 measures is played in alternation with a succession of couplets (episodes) so as to form a chainlike structure of variable length. Most rondos fall into either a five-part (abaca) or a seven-part (abacaba) form. The rondo was very popular in the late 18th and the early 19th centuries, frequently providing the form for the final movements of sonatas, quartets, symphonies, and concertos.

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rondo

a piece of music in which a refrain is repeated between episodes: often constitutes the form of the last movement of a sonata or concerto