Your handpan. Loops in your key.

Think of it as a pocket handpan studio that lives in your phone browser. You pick a scale, tap notes on a handpan layout, and a bass, drone and percussion track lock in behind you so it sounds like a small ensemble instead of a solo loop. If you don't own a real handpan, the on-screen one is fully playable, and anything you compose can swap over to kalimba, vibraphone or marimba with one tap.

Nope, no physical instrument required. The on-screen handpan uses real Freepats samples and is fully playable on its own, plus you've got 20 scales and 8-21 note layouts to mess with. Folks who own a handpan tend to use Backpan for the bass/drone/percussion backing tracks, but plenty of users just play the touchscreen pan and never touch a real one.

Should be fine. There are 20 scales in the picker (Kurd, Celtic, Pygmy, Hijaz, Akebono, Integral, La Sirena, the pentatonics, a few modes, etc.) and you pick any tonic from there, so D Celtic is just two dropdowns. Note count is flexible too, anywhere from 8 to 21, since the layout gets computed on the fly rather than loaded from a fixed template. Samples are real handpan recordings from the Freepats CC0 set.

Genuinely free during the private beta. No ads, no paywall, nothing locked behind an upgrade. Down the road I'm planning a patronage tier for folks who want to chip in, but I haven't pinned down what that looks like yet. Everything that's in the app right now (the 20 scales, 98 instruments, recording, sharing, multi-track) stays free either way.

Most apps ship a fixed list of scales and stop at letting you tap notes. The layout here is generated, so you pick any tonic and scale from 20 options at 8-21 notes. The bigger gap is the backing track side: percussion, bass, drone, chords, and melody all play together instead of just looping a scale. It also runs in a mobile browser with real recorded samples (Freepats CC0), and the same composition can replay on kalimba, vibraphone, or marimba if you want to hear it on something else.

Audio recording works today and captures all four synced tracks (handpan, bass, drone, percussion). Sharing is link-based right now, so the URL encodes your setup and your friend opens the same patch on their phone. The selfie-video overlay where you film yourself with the visual pan layered on top is on the roadmap for an upcoming release, but it's not shipped yet, just the audio side for now.

That's basically who I built the default setup for. It opens in D Kurd 9, which is a tuning where every note sounds good with every other note, so tapping around randomly already sounds musical. If you want a bit more structure, the melody presets like Greensleeves or Sakura work as tap-along tutorials, and the colored notes help you spot patterns without needing to read anything.

Mostly yes, as long as you've loaded it once on wifi first. The handpan and percussion stay cached in your browser, so they'll play fine offline. The only catch is some of the backtrack instruments like kalimba or marimba might need a quick reconnect to pull their samples. There's no proper PWA install yet.

7/8 is the easiest path: load the Karsilama flow and you're already in a Turkish/Balkan 7. For 5/4 or anything else odd, just edit the percussion pattern length to however many steps you need; the bass and drone lock to the same bar so they conform automatically. Heads up that a polyrhythm visualizer (3:2, 4:3, additive stuff) is on the roadmap but not shipped yet.

That's actually one of the core ideas. We store the notes you played, not the handpan timbre, so you tap the instrument slot and the same composition comes out on kalimba, vibraphone, marimba, mbira, whatever you pick from the 98. Same melody, totally different mood in about a second.

No app to install. It's just a web page, so open the URL in Chrome, Safari, Firefox, or Edge and you're in. It's built mobile-first for a phone in landscape, but desktop and tablet work fine too. On desktop you get more screen space and can use the keyboard alongside the mouse.

You can dig into polyrhythms today, just without the visual aid yet. Set two tracks to mismatched pattern lengths and they'll lock against each other on the shared master clock: a 3-step bass against a 4-step percussion gives you 3:4 looping naturally over 12 steps, and the 7/8 Karsilama flow is already in there if you want a non-trivial meter to study. The dedicated 3:2 / 4:3 / additive visualizer (ported from what XronoMorph does on desktop) is on the roadmap but not shipped, so for now it's an ear-and-counting exercise rather than a visual one.