Fugue

In music, a fugue (IPA: ) is a type of contrapuntal composition or technique of composition for a fixed number of parts, normally referred to as "voices", irrespective of whether the work is vocal or instrumental. In the Middle Ages, the term was widely used to denote any works in canonic style; by the Renaissance, it had come to denote specifically imitative works. Since the 17th Century the term fugue has described what is commonly regarded as the most fully developed procedure of imitative counterpoint. A fugue opens with one main theme, the subject, which then sounds successively in each voice in imitation; when each voice has entered, the exposition is complete; usually this is followed by a connecting passage, or episode, developed from previously heard material; further "entries" of the subject then are heard in related keys. Episodes and entries are usually alternated until the "final entry" of the subject, by which point the music has returned the opening key, or tonic, which is often followed by closing material, the coda. In this sense, fugue is a style of composition, rather than fixed structure. Though there are certain established practices, in writing the exposition for example, composers approach the style with varying degrees of freedom and individuality.
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n. fugue, elopement

v. escape, run away, flee; elope, secretly run away for the purpose of being married

(n.)
A polyphonic composition, developed from a given theme or themes, according to strict contrapuntal rules. The theme is first given out by one voice or part, and then, while that pursues its way, it is repeated by another at the interval of a fifth or fourth, and so on, until all the parts have answered one by one, continuing their several melodies and interweaving them in one complex progressive whole, in which the theme is often lost and reappears.