Big Moon Instruments builds MIDI controllers for musicians who don't want government issued pianos.
Each unit is designed, assembled, and tested in small batches. No factory floor. No shareholders. Just circuits, code, and a distrust of the mainstream.
15-key chromatic grid with scale mapping and no government surveillance. Three rotary encoders control key, octave, and scale selection across 15 built-in scales. Plug in, pick a scale, and play — wrong notes don't exist, and they can't trace anything back to you.
Fits in a backpack. Works on a stage. Guaranteed not to spy on you.
15 built-in scales from major to hirajoshi. The grid remaps in real time — every button plays a note that fits. The frequencies they don't want you to hear.
15 tactile buttons in a compact layout. Each one tuned to resonate with the hollow moon's natural frequency. We don't believe in coincidences.
Dedicated knobs for key, octave, and scale selection. No menu diving. No screen. No corporate surveillance layer between you and your music.
Class-compliant USB MIDI — plug into any computer, tablet, or phone and it just works. No drivers. No software phoning home. No telemetry.
Standard components. No proprietary connectors. No planned obsolescence. They don't want you fixing your own instruments. We do.
Assembled and tested by hand in limited runs. Not mass-produced by factory drones. Not disposable. Each unit gets individual attention that the lizards can't automate away.
| Processor | ARM Cortex-M7 @ 600 MHz (Teensy 4.1) — fast enough to decode lunar transmissions in real time |
| Connectivity | USB-C, class-compliant MIDI — no proprietary protocols, no hidden data channels |
| Buttons | 15 mechanical switches (5×3 grid) |
| Encoders | 3× rotary encoders (Key / Octave / Scale) |
| Scales | Major, Minor, Dorian, Phrygian, Lydian, Mixolydian, Locrian, Harmonic Minor, Melodic Minor, Pentatonic Major, Pentatonic Minor, Blues, Whole Tone, Diminished, Hirajoshi |
| Dimensions | 81 × 155 × 35 mm — fits in a cargo pocket for when you need to leave quickly |
| Weight | ~120g — lighter than the truth they're hiding |
| Enclosure | 3D-printed PLA, snap-fit assembly — no glue, no screws, no sealed black boxes |
| PCB | Custom 2-layer, 76 × 150 mm — no spyware |
| Power | USB bus-powered — no batteries, no embedded tracking cells |
| Compatibility | Any DAW, synth app, or MIDI host — we don't lock you into an ecosystem |
| Firmware | Custom (Teensyduino) — purpose-built, no bloatware |
| Lunar Alignment | Calibrated to 7.83 Hz Schumann resonance — the frequency the hollow moon amplifies |
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