You've already met 3:2 as a groove in Polyrhythmic Grooves. This lesson is the next step: making 3:2 something you own internally, not just something your hands can execute when the click is on. The goal is two simultaneous pulses living in your body at the same time — so that, mid-groove, you can shine the spotlight on either one without losing the other.
The technical content is small (3 against 2 on a kit is six-against-four, you've seen the math). The pedagogical content is large. Three-against-two is the universal solvent of polyrhythms: once you genuinely feel it, every other ratio becomes a variation rather than a new puzzle. West African drumming, Bach's keyboard music, Cuban rumba, and prog rock are all riding on this same skill.
The Two Layers, Visualised
A bar of 3:2 has six even pulses underneath. The 3-pulse hits every two of those (positions 1, 3, 5). The 2-pulse hits every three of those (positions 1, 4). They share position 1; everywhere else they argue. Counting "1-2-3-4-5-6" works for a few bars, but it's a crutch — eventually you have to stop counting and start feeling.
Build Order — From Outside the Kit
- Clap a 2-pulse with your hands while tapping a 3-pulse with your foot. Then swap: 3 in the hands, 2 in the foot.
- Once both directions are equally easy, sing one pulse while clapping the other. The voice is a third limb here — the more limbs that know the polyrhythm, the deeper it goes.
- Move to the kit only when the body version is rock-solid. If you can't do it on a tabletop, you cannot do it on a drum set.
Switching Foreground
The deeper skill — and the one that separates a drummer who has practised 3:2 from one who has internalised it — is being able to switch which pulse you're hearing as primary without changing what your hands are doing. The 3-pulse and 2-pulse are both there; your attention picks one. This is the same skill that lets a Cuban drummer hear the 3-side of a 3-2 clave as the strong side, and a North Indian musician hear the same rhythm grouped completely differently. The hands play one thing; the mind hears another.
Across the Kit
The final exercise breaks 3:2 across the kit — the 3-pulse on the high tom, the 2-pulse on the floor tom, the kick filling in the underlying six. This is the entry point to polyrhythmic orchestration: distributing the layers of a polyrhythm across multiple voices so a listener can see them in stereo. It's the sound of Tony Williams, Jack DeJohnette, and any modern jazz drummer working in odd subdivisions.