Hex MIDI - Isomorphic Keyboard

Hex MIDI - Isomorphic Keyboard turns your phone or tablet into a flexible isomorphic keyboard that replaces piano-style keys with a geometric grid where chord shapes and scale patterns keep the same fingering in every key. That makes it easy to learn a shape once and play it anywhere. The app includes popular isomorphic presets (Wicki-Hayden, Harmonic Table, Janko and Fourths), customizable key shapes (hexagons, squares or circles), adjustable grid size, and MIDI output so you can connect to a DAW or external synth—ideal for musicians who want a portable, theory-friendly input method.

Key Features

⭐ Multiple isomorphic presets: Wicki-Hayden, Harmonic Table, Janko and Fourths are included in Hex MIDI - Isomorphic Keyboard, letting you switch layouts instantly.

⭐ Shape options: choose hexagons, squares or circles to match your preferred playing style.

⭐ Customizable grid size: resize keys and spacing to fit your screen and hands for comfortable play.

⭐ MIDI output and integration: send notes to a DAW or external synthesizers for production and performance.

⭐ Triads and shapes made simple: layouts like the Harmonic Table let you form common chords with minimal movement.

Advantages

✅ Consistent fingering across keys reduces the time needed to transpose and learn new songs.

✅ Portable and flexible input device — use your phone or tablet as a compact controller for practice or live work.

✅ Deep customization means you can tailor layout, key geometry and size to your workflow.

✅ Hex MIDI - Isomorphic Keyboard supports standard MIDI connectivity so it fits both studio and stage setups.

Disadvantages

❎ Nonstandard layout requires an adjustment period for players accustomed to piano keys or guitar fretboards.

❎ Full integration benefits depend on MIDI-compatible hosts or external hardware to route sound and record.

❎ Touchscreen responsiveness may limit very fast, piano-like runs compared with dedicated physical controllers.