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.
Reich describes the piece as being in the form of a chaconne, variations on a repeated short harmonic progression.
He discarded that effort but kept the basic idea of suspensions, inverting the chords within a middle register to reduce the dissonance.
The original commercial recording of the Variations was made by the San Francisco Symphony in 1984, with Edo de Waart conducting.