Aleatoric11 Rhythm Lab

🎲 Aleatoric11: Generative Rhythm Lab

Create patterns. Randomize seeds. Capture the chaos.

Aleatoric11 Rhythm Lab is a browser-based generative rhythm and sound tool — part drum machine, part sandbox, part creative experiment.

Important: you must load your own sounds into the sound pool to start generating sounds. It's highly recommended that you first use this with a professionally made sound pool. 

There's no limit to size of the size of the sound pool (I've loaded over 600 sounds with no issue), but results may vary depending on your available RAM and browser. 

This is also freely available on the web at: sammysindieradio.com/aleatoric11

Once your sounds are loaded, let the app generate evolving rhythmic “kits” from random seeds. You can play, record, and layer your creations — or simply let it drift as an evolving sound toy with the "Auto-Rotate" option enabled.

🧠 Features

• 🎧 Load & randomize sounds – Drag in samples, or work with your own library.

• 🎲 Pattern Seeds – Each track’s rhythm is generated from a unique seed. Roll again for endless variations.

• 🎚️ Enhanced controls – Adjust tempo, panning, rotation, and more.

• 🔄 Auto-Rotate mode – Let your session evolve over time as patterns shift automatically.

• 💾 Record to WAV – Capture your live output directly in-browser.

• 🛡️ No tracking, no logins – 100% privacy-friendly and offline-capable.

💡 Why “Aleatoric”?

In music, aleatoric means “chance-based.”
Aleatoric11 is built around that spirit — a way to spark ideas you wouldn’t have consciously composed. It’s not about perfection; it’s about finding rhythm in randomness.

🌐 Built for the Browser

No install, no setup. Works in most modern browsers and on desktop.
For best performance, use Chrome or Edge with a moderate CPU and a decent soundcard.

🧩 Credits

Developed by John Leonard