A Dictionary of Music and Musicians/Durchführung

DURCHFÜHRUNG—leading through, or taking through. Durchführung-satz is the German term for that portion of the first movement of a sonata or symphony—or other movement in similar form—which occurs between the double-bar and the reprise of the first subject; and in which the materials of the previous portion—with or without episodes, or other fresh matter—are led through such changes and varieties of treatment and contrivance as the genius and knowledge of the composer may dictate. In England this portion is often called the 'free fantasia' surely an unfortunate name, as 'fanttasia' suggests rather an entire movement than, a part of one. Perhaps 'development' or 'working out' would be a better term. [Form.]