Raindrops

Polyrhythms, for Android

A pocket instrument where a polyrhythm comes together in seconds, with one hand.

The app is meant to be minimal, yet it does a lot. You can build a steady, good-sounding groove with accents placed hit by hit, or a complex polyrhythm.

You don’t just hear the rhythm, you see it: every layer is a ring, every hit is a mark on it, and one cursor sweeps them all.

It’s for drummers and percussionists practising independence, for musicians sketching a rhythmic idea, and for anyone who wants to see how two pulses lock together.

What it does

• Up to 8 layers, each with its own number of steps across the same cycle.
• Every hit has its own strength: accents and ghost notes are drawn with a swipe.
• 8 drum sounds, each recorded soft, medium and strong: a harder hit sounds different, not just louder.
• Tempo scrolled with your thumb or tapped in; solo and mute for any layer while it plays.
• Presets of the classic polyrhythms — 3:2, 4:3, 5:4, 7:4 — and your own saved patterns.
• Keeps playing with the screen off or behind another app.
• No account, no ads, no tracking, no network access. Free.

When

Raindrops is getting ready for Google Play. If you’d like to try it early and tell me what’s awkward, write to support@alyz.app.