Three taps sound like a band.
Every ring is locked to a scale, so there are no wrong notes. Four loops of different lengths drift against each other, so even three taps sound like an arrangement.
Pre-orders open · ships spring 2027
Ten seconds to your first song.
Rondo is a palm-sized instrument with four turning rings. No lessons, no screen, no subscription. Try it right here.
100-night trial · free shipping · or $112.25 × 4
Go on, play it.
- Tap the sun to start.
- Tap a ring to add a note.
- Drag around a ring to shift the groove.
Or let a mood compose one for you:
That's the whole idea. The real one clicks as you turn it →
Why people pre-order
Still surprising in year ten.
Five synthesised voices, twelve scales, MIDI in and out, Bluetooth and USB audio. Musicians use it as a pocket sketchbook; everyone else just keeps finding new songs.
Four screws, not glue.
Aluminium, steel and sapphire. A battery you can replace. Open firmware and updates until 2037. That's $3.74 a month over ten years, and no subscription, ever.
Proof you can check.
- You played it. The instrument above is the real sound engine, not a recording.
- Read every line. This site's code is public, and Rondo OS will be open source (MIT). Source
- In writing. Updates until 2037, parts at cost, a battery you can change. The promise
Rondo, $449.
or $112.25 × 4 interest-free · charged when it ships in spring 2027
- Choose Noon, Ember or Moon, with free engraving
- 100-night trial and free returns
- 5-year warranty, repairable for life
- Cancel any time before it ships
Do I need to know music?
No. That's the point. If you can tap and turn, you can play Rondo, and you just did.
Is there an app or subscription?
Neither. Rondo works on its own. Everything is included, forever.
When does it arrive?
Pre-orders ship in spring 2027, in order. You're only charged when yours ships.
What if I don't love it?
Send it back within 100 nights for a full refund. We pay for the return.