3:2 polyrhythm

What it means

A 3:2 polyrhythm means three evenly spaced notes happen in the same amount of time as two evenly spaced notes. The two layers share the same cycle, start together, and meet again at the next cycle point.

In practical terms, you can think of it as three over two: one part plays or accents three equal pulses while another part keeps two equal pulses underneath.

How the layers line up

The cleanest way to see 3:2 is to divide the full cycle into six equal subdivisions. The three-note layer lands every two subdivisions. The two-note layer lands every three subdivisions.

Both layers land together on subdivision 1. After that, they separate: the three-layer lands on 3 and 5, while the two-layer lands on 4. They resolve together when the six-subdivision cycle begins again.

How to count or clap it

Start by counting six even subdivisions: 1 2 3 4 5 6.

Clap the three-layer on 1, 3, and 5. Tap the two-layer with your foot on 1 and 4.

The combined pattern is: both - rest - clap - foot - clap - rest.

A useful spoken aid is the three-syllable phrase pine-ap-ple. Say the syllables evenly on subdivisions 1, 3, and 5, then let the next pine land with the start of the next cycle.

If your metronome click is the two-pulse layer, let the click mark subdivisions 1 and 4. Then fit three evenly spaced claps across the same span. On a drum kit, this could mean the kick or hi-hat keeps the two side while the snare, ride, or hand pattern plays the three side.

How it feels

3:2 feels like a stable two-pulse foundation with a wider three-note shape stretched across it. The first attack feels grounded because both layers line up. The middle of the cycle creates tension because the accents do not agree. The next cycle releases that tension when the layers meet again.

The second clap of the three-layer, on subdivision 3, sits just before the second main pulse on subdivision 4. That is a common place to rush, because your ear may want the clap and foot tap to line up.

A useful mental image is: the two side is the grid, and the three side floats across it without speeding up or slowing down. The tempo has not changed. The meter has not necessarily changed. Only the accent or note placement is creating the cross-feel.

Where musicians use it

3:2 appears in many musical settings, including drum grooves, piano and guitar patterns, bass ostinatos, vocal phrasing, electronic production, jazz improvisation, progressive rock and metal, contemporary classical music, and many African and African-diasporic rhythmic traditions. The exact feel, accent, and cultural role vary by style and ensemble.

For pianists, a common version is playing three notes in one hand against two notes in the other. For drummers, it may appear as three ride or bell accents over two beats of time. For producers, it can be programmed as three evenly spaced hits against a two-beat loop to create forward motion.

Common confusions

3:2 vs. 2:3: The ratio names the relationship, but musicians sometimes describe it from different viewpoints. In this article, 3:2 means the three-note layer is being heard against a two-pulse layer. If the musical focus is the two-note layer against a three-pulse layer, many musicians call that 2:3.

3:2 vs. triplets: A 3:2 polyrhythm often uses triplet spacing, but not every triplet is a polyrhythm. It becomes a polyrhythm when the three-note grouping is heard at the same time as a two-note grouping.

3:2 vs. hemiola: Hemiola is a specific kind of temporary 2-against-3 or 3-against-2 feeling, often used to shift the perceived accent pattern. A 3:2 polyrhythm can create a hemiola-like effect, but the terms are not always interchangeable.

Polyrhythm vs. polymeter: In a polyrhythm, the layers share the same overall cycle and resolve together. In polymeter, different parts may use different meters or bar lengths, such as one part feeling 3/4 while another feels 4/4, with the barlines lining up less often.

Practice with a metronome

1. Set the metronome to a slow tempo, such as 60 bpm. Let each click be one of the two main pulses.
2. Count two clicks as one full cycle: 1 2.
3. Subdivide the space across the two-click cycle into six equal parts: 1 2 3 4 5 6.
4. Tap your foot with the click on subdivisions 1 and 4.
5. Clap the three-layer on subdivisions 1, 3, and 5.
6. Keep the foot steady and make the claps even. Do not let the clap on subdivision 3 rush toward the second click.
7. For a harder version, mute every other click or set the click to only mark the start of each full 3:2 cycle.