Circle of Fifths Harmony Instrument – Three Synth Engines, Walnut Body, Battery Powered

Product Introduction
A harmony instrument that thinks like a musician. Press a chord – it plays. Strum the arpeggiator – it sings. Three synth engines (additive, subtractive, granular) let you shape sound from pure sine to textured noise. Solid walnut. Battery or USB‑C. The body itself becomes a speaker.

Key Features

🎵 Chords at your fingertips
The circle of fifths layout makes beautiful progressions easy. Play things you‘d never find on a piano.

🎹 Three instruments in one
Switch between additive FM (7 partials), classic subtractive, and granular synthesis. Each is a different world.

🪵 Wood that sings
Solid walnut enclosure. Cherry MX silent keys. Surface transducers turn the case into a speaker – warm, natural, unexpected.

🔋 Take it anywhere
4 AA batteries last for hours. Or plug into USB‑C. Play in a park, on a train, or in your studio.

🎛️ Control everything by touch
Slide faders to shape overtones. Strum the arpeggiator like a harp. Build chords note by note. No menus.

Technical Specifications

• Synthesis: Additive FM, subtractive, granular
• Controls: 7 partial faders, filter envelope, reverb, manual arpeggiator
• Keys: Cherry MX Silent Red
• Power: 4× AA or USB‑C (4‑17V)
• Audio: Stereo 1/4″ out + built‑in speaker
• Material: Solid walnut (US)
• Pre‑order: 50 units, 6‑10 weeks

Package Contents

• 1 × Harmony instrument
• 1 × USB‑C cable
• 1 × Quick start guide

✨ A new way to play harmony. Natural, intuitive, alive.