Interactive Polyrhythm Visualizer & Audio Generator

Cross-Rhythm & Polyrhythm Visualizer Online Tool

If you have ever tried wrapping your head around a 3-against-4 or 5-against-4 rhythm, you know how quickly your brain ties itself in knots. Counting them out loud works until the tempo picks up, and sheet music does not always make the overlapping pulses click instantly.

I wanted something visual and hands-on to see where these beats actually lock in and clash, so I put together a browser-based polyrhythm visualizer right inside a single lightweight tool. No heavy software to install, no plugins—just open up the page and start tweaking numbers.

How It Works Under the Hood

Instead of relying on clunky third-party audio libraries, the tool uses the native Web Audio API paired with an HTML5 Canvas.

• The Sound Engine: Each rhythm channel generates its own clean sine or triangle wave oscillator. Whenever the pulses cross paths, a subtle accent trigger fires so you hear the exact collision point.
• The Visualizer Modes: You can toggle between two distinct views depending on what makes sense to your eyes:
• Circular Mode: Concentric rings where nodes rotate and hit timing markers. Perfect for seeing cyclical patterns line up.
• Linear Mode: Horizontal track bars where the playheads move left to right, giving you a classic sequencer timeline feel.

Why Bother Playing With Polyrhythms?

Whether you produce electronic music, play drums, or just like messing around with audio math, understanding how different time signatures intersect opens up a lot of doors.

• Groove Variation: Shifting your percussion layers away from standard 4/4 grids adds instant momentum to a track.
• Ear Training: Hearing the exact moment two independent tempos sync back up trains your brain to track multiple subdivisions at once.
• Instant Tweaks: You can adjust BPM, pitches, and beat counts on the fly without stopping the loop.

Try It Out

I tossed this into a custom block on the site so it loads instantly without slowing down page speeds. Drop your feedback or let me know what rhythm ratios you end up experimenting with in the comments below! 🎧