Performed by Steve Reich and Musicians (1987, Duration ) Drumming is a piece by minimalist composer Steve Reich, dating from 1970–1971. Soul Assassins Intermission Rare. Reich began composition of the work after a short visit to Africa and observing music and musical ensembles there, especially under the Anlo Ewe master drummer Gideon Alorwoyie in Ghana.

His visit was cut short after contracting malaria. Robert Schwarz describes the work as 'minimalism's first masterpiece.' The piece employs Reich's trademark technique of phasing. Phasing is achieved when two players, or one player and a recording, are playing a single repeated pattern in unison, usually on the same kind of instrument.

One player changes tempo slightly, while the other remains constant, and eventually the two players are one or several beats out of sync with each other. They may either stay there, or phase further, depending on the piece. In total, the work requires 9 percussionists. With the additional players, the piece can be performed by 12 or 13 players. The work falls into four parts, with the following instrumentation used in each Part One: 4 pairs of tuned bongo drums, played with double-ended wooden sticks (and one male voice, according to the original score) Part Two: 3 marimbas, 2 or 3 female voices Part Three: 3 glockenspiels, whistler, and piccolo Part Four: complete ensemble The length of the piece can vary widely, as the number of repeats taken on any given measure is up to the performers. Recordings of the piece span between 55 and 84 minutes. The entire piece is structured around a single repeated rhythm, one measure of 12/8 long.

This rhythm is built up note by note, in the 'substitution of beats for rests' technique found in other of Reich's works such as Music for Pieces of Wood, Octet, Music for 18 Musicians, and others. After the rhythm is completely built up, two of the players phase to where they are playing the same pattern one quarter-note apart from each other, and the other bongo players play resulting patterns that can be heard as a result of the combination of the phased patterns. The rest of the piece continues to use the techniques of beat/rest substitution, phasing, and resultant patterns through its four movements. The transitions consist as follows: Movement 2 begins by three marimba players playing exactly the same repeated pattern as the bongo players, fading in while the bongo players fade out. Movement 3 begins similarly; three glockenspiel players begin doubling the marimbas (which by now are playing in their upper ranges), fading in while the marimbas fade out.