Terry Riley
Terry Mitchell Riley
5 min read
Terry Riley is an American composer born in 1935, a pioneering figure of minimalist music. His work In C (1964) is considered one of the founding acts of this movement that transformed twentieth-century music.
Frequently asked questions
Key Facts
- Born in 1935 in Colfax, California (United States)
- Composed In C in 1964, a founding work of musical minimalism
- Pioneer of repetitive music alongside Steve Reich and Philip Glass
- Studied classical Indian music under Pandit Pran Nath beginning in the 1970s
- Had a lasting influence on contemporary music and popular music (progressive rock, ambient)
Works & Achievements
Founding work of minimalism: 53 motifs played freely by an indeterminate number of musicians.
Album of keyboards and organ layered through multitrack recording, now a classic of repetitive music.
Piece for saxophone and looped tapes illustrating the Time-Lag Accumulator.
Work for organ in just intonation, marked by the influence of Indian music.
Vast string quartet cycle written for the Kronos Quartet.
Work for string quartet and pipa, the fruit of the enduring collaboration with the Kronos Quartet.
Anecdotes
In 1964, Terry Riley composed In C, a score fitting on a single page: 53 short musical motifs that each musician plays in order, repeating each one as many times as they wish before moving on to the next. No two ensembles therefore play the work in exactly the same way, and its duration varies from one performance to another.
To stabilize the tempo of In C, it was reportedly the composer Steve Reich, present at the premiere, who suggested adding a steady pulse of high, repeated notes on the piano: this beat, nicknamed “the pulse,” has remained in most interpretations.
In the 1960s, Riley gave nighttime concerts called “All-Night Flights,” where he played the organ and saxophone in loops until daybreak, inviting the audience to doze off on the spot in sleeping bags.
Riley long used a system of looped magnetic tapes, the “Time-Lag Accumulator,” which fed back the sound played a few seconds earlier to create endless layerings, a technique he notably exploited in A Rainbow in Curved Air (1969).
Fascinated by Indian music, Riley became in the 1970s the disciple of the singing master Pandit Pran Nath and made many trips to India to study the raga, which lastingly transformed his approach to improvisation.
Primary Sources
All performers play from the same page of 53 melodic patterns played in sequence. Any number of any kind of instruments can play.
Each player has the freedom to determine how many times he or she will repeat each pattern before moving on to the next.
And then all wars ended... The new music will be played all day by tireless musicians on the free instruments of the future.
Key Places
Small California town where Terry Riley was born in 1935.
Riley pursued his musical studies here and became part of the San Francisco Bay Area experimental scene.
Site of the premiere of In C in 1964, a hub of Californian electronic and experimental music.
Riley stayed here in the early 1960s and developed his experiments with magnetic tape loops.
California institution where Riley taught composition and Indian music from the 1970s onward.






