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Variations for Winds, Strings and Keyboards
''Variations for Winds, Strings and Keyboards'' is an orchestral piece composed in 1979 by Steve Reich. The piece is scored for oboes, flutes, full brass (three trumpets, three trombones, and tuba), strings, pianos, and electric organs. ''Variations'' was Reich's first orchestral piece.
==Structure and Instrumentation==
Reich describes the piece as being in the form of a chaconne yes chaconne, variations on a repeated short harmonic progression. The piece has three variations of a complete cycle of harmonic progressions (C minor to C flat, and then gradually back through several keys to C minor), moving one note of a chord at a time, a process of suspension.
The three movements are approximately six, ten, and nine minutes. The winds and keyboards (three oboes doubled by electric organs, alternating with three flutes doubled by pianos and electric organs) play the melody throughout. Harmonies are played by the strings doubled by organs. The brass add to the harmonies in the first and last sections of the piece.
The chord form for the piece was taken from the opening of the second movement of Béla Bartók's Second Piano Concerto. Reich initially wrote the first movement for only strings, with a significant amount of dissonance. He discarded that effort but kept the basic idea of suspensions, inverting the chords within a middle register to reduce the dissonance.
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