Hex MIDI - Isomorphic Keyboard

Hex MIDI transforms your phone or tablet into a professional isomorphic virtual synthesizer and MIDI controller.
Instead of traditional piano keys, Hex MIDI uses a geometric layout where chord shapes and scale patterns remain identical across all 12 musical keys. Learn a chord shape once, and play it anywhere!
Built-in Sound Engine & Soundfont Support:
- Play immediately with high-quality built-in instrument sounds (Pianos, Synths, Strings, Organs, Drums, and more).
- Import custom SF2 and compressed SF3 soundfonts to build your personalized sound library.
Choose Your Perfect Layout:
Switch instantly between the most popular isomorphic layouts used by hardware controllers and accordions:
- Wicki-Hayden: The industry standard for hexagonal playing. Perfect for fast scales and fluid, piano-like runs.
- Harmonic Table: The ultimate chord-building layout. Play major and minor triads with simple one-finger triangle shapes.
- Jankó (Bosanquet): A linear, melodic layout for intuitive transposition and chromatic speed.
- Fourths (Guitar): Tuned like a guitar fretboard—guitarists can transfer their shapes directly to the screen!
- Chromatic Accordion: Play using standard C-System or B-System accordion layouts.
Visual Scale Guidance:
- Scale Visualizer: Highlight scale degrees, roots, pentatonic, blues scales, and modes directly on the keys so you never hit a wrong note.
Pattern Editor & MIDI Recording:
- MIDI Performance Recorder: Record your performances into standard MIDI files and manage your recording library.
- Pattern & Sequence Editor: Craft, edit, and experiment with custom note loops and sequences.
- Integrated Metronome: Precise tempo control with tap BPM, time signatures, and visual beat indicators.
Powerful Customization & FX:
- Shape-Shifting Keys: Choose Hexagons, Squares, or Circles to match your playing style.
- Built-in Audio Effects: Add depth to your sound with Reverb, Delay, EQ, and Modulation effects.
- MIDI Control Pads: Customizable drum & CC pads for performance control.
- Hardware & DAW Connectivity: Connect via USB or Bluetooth MIDI to Ableton, FL Studio, Logic Pro, or hardware synths.
- Background Audio: Keep playing seamlessly with lock-screen playback support.
Unlock the power of isomorphic geometry. Download Hex MIDI and start creating today!