tonespace

Tonespace 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.

Features:

• 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