It's a different, more intuitive music keyboard, combined with a chorder. It supports over 50 different grids, 14 scales, 18 keys, 30+ chord types and 10 chord voicings. It can function as a VST or Audio Unit plugin, processing incoming MIDI events and/or generating outgoing MIDI. You don't need to use MIDI though: there is also a standalone executable which contains its own little synth for a fast start.
· You can play and visualize chords while you move the mouse around in a grid-like space
· You can learn how musical scales and keys work, and how chords relate to these, using the simple octave-based spaces
· You can visually discover how chords map onto surprisingly simple geometric shapes in the more advanced spaces
· You can use the chord-generation algorithm to generate chords from these simple shapes in the advanced spaces