The open brain for your analog rig.
Pedalboards, amp racks and modular synths have one thing in common: they forget. Every setting, every routing, every patch — gone the moment you touch it. MusicBrain gives them memory. Your audio stays 100% analog; the brain speaks only relays, CV and gate.
One platform · three machines
for modular synthsCortex
Save and recall full patches. Play your analog oscillators polyphonically — up to 16 voices, allocated live from MIDI.
In developmentfor pedalboardsReflex
Silent relay switching for your whole board in one tap. Configure over WiFi from any browser — no app.
In developmentfor studiosRelay
Any pre-amp to any power amp to any cab. Pop-free, pure relays, recalled from your desk.
In developmentFresh from the bench
Latest release
cortex v0.3 · 2026-07-16
- Gen 2: slots 2x12 met audio-lijnen (MCLK/BCLK/LRCLK + I2S-data per slot)
- Busboard rev 3.1: 40 HP, slots gecentreerd op 4 HP-steek, MIDI 2x2, USB-host, J24-audiohub, J25 Axon-voeding
- Kaarten H=45 en op maat (40-65 mm breed); jack8 past nu tussen de rails
- Cortex editor 0.5.48: browser-patcher + polyfone simulatie, contract-gekoppeld aan fw 0.5.48
- FPGA voice 0.3.0: 8-stemmige Karplus-Strong + MS-20-filter (Tang Primer 20K) als SPI-instrument aan de CV/gate-bus
Try it before it exists.
The free browser editor patches modules, turns knobs live and shows every CV on a built-in scope. No hardware yet? The simulator runs the exact same firmware core on your laptop.
Open the editor →Open, top to bottom.
Firmware, editor, schematics and protocols are MIT-licensed. No lock-in, no orphaned gear — extend it, port to it, fix it at 2 a.m. Everything on GitHub.
Stay in the loop
Newsletter signup (double opt-in) is coming with the first beta. For now, watch the releases page — every update lands there first.