Axis Gemina

Harmony is a cycle of twelve, not a line. Axis Gemina puts that cycle in space so you can play its symmetries.

Private beta · TestFlight · iPad

Axis Gemina on iPad — Sacred / Flower

The idea

Harmony is usually written as a line: a keyboard, a staff, a piano roll. The twelve notes are a cycle. Intervals, chords and scales are symmetries of that cycle. Axis Gemina puts the cycle in space so you can play those symmetries directly — an interval is a distance, a chord is a shape, a scale is a path, transposition is a rotation.

On the instrument

What you actually touch. Nothing else.

AXIS

Six positions. Neighbours are semitones at one stop and fifths at the opposite. The notes stay; what “next to” means changes.

SCALE · LOCK

The scale paints which seats belong. LOCK: out-of-scale notes do not sound. The map does not redraw.

WALK

A route on the same figure — play, rate, cycle. Not a piano roll beside the instrument.

CHORDS

The rim deals the chords of the key. Attack is BLOCK or ARP.

SHAPES

How the twelve are seated. The photo is Sacred — Flower.

MIDI

An external keyboard lights the same seats you play with your hands.

Requirements

Private beta

Leave an email. One message when an invite is ready.