Get started
Three ways in.
Play in your browser, run it on a Teensy, or build hardware. The step-by-step documentation lives in the MusicBrain repository on GitHub; guides marked (NL) are in Dutch.
Play in your browser
- Open the editor and select Modular MB.
- Load a ready-made patch from Solo or Poly.
- Open Simulation, start audio at a low volume and play the on-screen keyboard or a MIDI keyboard.
- Export the project as JSON — browser storage is not a backup.
Use a Teensy
You need a Teensy 4.1, a USB data cable and a computer; sampler and bank patches also need PSRAM and a microSD card.
- Download a released firmware and flash it with PJRC Teensy Loader.
- Connect from the editor's Teensy link and check the version it reports.
- Listen over USB audio — the current firmware has no standalone analog output.
Use a Teensy → · Firmware distribution (NL) · Teensy on a PC (NL)
Build hardware
Stick to one board generation. Check each card's revision, pinouts, BOM/fab files and validation status, and verify power and orientation before first power-up.
A clean ERC/DRC or fab package is not proof of an assembled, tested board.
Before you start
- Browser: a current Chrome or Edge gives the most straightforward Web MIDI/USB workflow. Audio, MIDI and serial access each ask for permission.
- Backup: export your projects as JSON; browser storage is not a backup.
- Teensy: Teensy 4.1 and a USB data cable; PSRAM and microSD for samplers and banks. The documented flashing and audio workflow is for Windows.
- Optional: AI assistance and local speech generation have their own configuration. The core editor needs neither.
Only the combinations above are documented; others may work but have not been tested.
License
MusicBrain's own code is MIT-licensed. Third-party libraries and assets keep their own licenses and notices; check them before redistributing firmware, sample banks or bundled material. License and source →