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Minichord Synthesizer – Open-Source MIDI Instrument with 21 Chord Buttons
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The Minichord Synthesizer is an innovative, open-source musical device designed for creators, performers, and music hobbyists who want a powerful yet intuitive way to explore sound.
Equipped with 21 chord selector buttons, a 12-zone harp touch area, built-in presets, and full USB-MIDI support, it offers musicians a fresh and expressive method of composing melodies, triggering chords, and building harmonies.
Whether you're producing electronic music, scoring films, or experimenting with sound design, the Minichord delivers a flexible workflow that fits seamlessly into any studio or live setup.
Powered by an ARM Cortex-M7 600 MHz processor and a 1000mAh Li-poly battery, this portable MIDI instrument ensures smooth performance and uninterrupted creativity.
Because the Minichord is fully open-source, users can access, modify, and customize both its hardware and software, encouraging limitless creativity.
From music education to live performances and rapid prototyping of musical ideas, the Minichord is a compact yet powerful tool for anyone looking to enhance their musical expression.
Note Change Record
2025/6/19, Remove the Micro-USB to USB A data cable.
| Parameter | Description |
|---|---|
| Processor | ARM Cortex-M7 @ 600 MHz |
| Battery | 1000mAh Li-poly battery |
| Outputs | 3.5mm Audio Jack, Micro-USB charging & data port |
| Chord Buttons | 21 main chord buttons |
| Additional Buttons | 1× Sharp button, 1× Rhythm Mode button, 2× Preset selection buttons |
| Indicators | Preset indicator ×1, Rhythm mode indicator ×1 |
| Potentiometers | 3× Potentiometers |
| Touch Zone | 12-zone harp-style touch area |
| Connectivity | USB-MIDI support |
| Dimensions | 182mm × 97mm × 30mm |
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.