The ultimate modular MIDI workstation for professional performers.
Connect your MIDI controller via USB-OTG (Android) or USB (Windows). Use "Add MIDI Port" to create custom routing targets for hardware (Korg, JuziSound) or VSTs (Kontakt). Double-click ports to rename them for easy identification.
Layer multiple instruments in a single performance. Each slot features independent control over:
Customize your workspace without coding. Use Edit Mode for pads or Long-press (2s) on sliders and side buttons to assign MIDI CC, Program Changes (with MSB/LSB support), or SysEx messages. Use MIDI Learn to sync with your physical knobs instantly.
Adjust tuning for any note from -100 to +100 cents by long-pressing the keys on the piano display. Save custom scales to your library or use the Favorite buttons (hold for 3s to save).
TECHNICAL NOTE: Microtuning is applied via real-time Pitch Bend messages. For accurate tuning, ensure your hardware synthesizer or VST instrument has its Pitch Bend Range set to 2.
Save your entire configuration using the Diskette icon. For maximum safety, the app supports manual JSON text copying and easy loading from local storage.
Effective Date: April 25, 2026
AB MIDI Router is built with privacy at its core. We do not collect, store, or share any personal information.
For technical inquiries, bug reports, or feature requests, contact us at:
absoft.ab1@gmail.com