Musical Form
Minimalism
Music built from small repeating patterns that shift gradually over time.
20th / 21st Century Style
Minimalism builds music from small melodic or rhythmic patterns, repeated steadily and then altered gradually - a note added, a rhythm shifted slightly, a new layer introduced - rather than through the dramatic contrast and development that drives most earlier classical music. The effect is often hypnotic: change happens, but slowly enough that a listener can feel it unfolding rather than being surprised by it.
Where it came from
The style emerged in the United States in the 1960s and 70s as a reaction against the extreme complexity of mid-century modernism (including serialism), offering listeners something more direct and texturally simple, even when the underlying process generating the music is quite rigorous. Its pioneers drew on sources far outside the European concert tradition: the long rhythmic cycles of Indian classical music, West African drumming, Balinese gamelan, jazz, and rock. They often played in lofts and galleries rather than concert halls, with their own ensembles.
How it works
Minimalist composers use a handful of techniques to generate change from simple material:
- Repetition and pulse - a steady beat and short repeating figures form the foundation.
- Phasing - Steve Reich's signature technique makes the underlying rigor audible: two performers play the same short pattern in unison, then one gradually speeds up or shifts slightly out of sync with the other, generating constantly evolving new rhythmic combinations from identical raw material. He discovered it in the mid-1960s with tape loops, then transferred it to live players in Piano Phase (1967).
- Additive process - Philip Glass lengthens or shortens a repeating figure note by note, so the pattern grows and shrinks over time.
- Drones and slow harmonic change - long-held notes and harmonies that shift only rarely, giving each change enormous weight.
The composers
Terry Riley's In C (1964), in which any number of performers work through 53 short phrases at their own pace, is often called the first minimalist landmark. Steve Reich's Music for 18 Musicians (1976) and Philip Glass's opera Einstein on the Beach (1976) brought the style to wider attention. John Adams extended minimalist technique into a more overtly dramatic, narrative context in operas like Nixon in China, and in exuberant orchestral works such as Short Ride in a Fast Machine.
A quieter, more spiritual branch, sometimes called "holy minimalism," grew up in Europe: Arvo Pärt's bell-like tintinnabuli style, Henryk Górecki's Symphony No. 3, and the music of John Tavener.
Legacy
The style's steady pulses and layered repetition went on to influence film scoring and popular electronic music well beyond the concert hall - from Brian Eno's ambient albums to the film scores of Glass, Michael Nyman, and Max Richter. Minimalism also helped bring new classical music back to a broad audience after decades in which much of it had seemed forbiddingly difficult. Our Contemporary era page places it in context.
Composers to know: Philip Glass, Steve Reich, and John Adams are the style's most influential figures, each with a distinct approach to repetition and gradual change, alongside Terry Riley, who helped start it all.
Where to start listening: Philip Glass's Glassworks is a gentle, accessible introduction; Steve Reich's Music for 18 Musicians rewards longer, more immersive listening. For something short and fun, try Reich's Clapping Music - two people, four minutes, and nothing but hand claps.