If you're curious about the fingering system, check out:



In short, the right hand buttons are the treble. Up/down they are minor thirds, and can be traversed diagonally down to produce a chromatic scale. Stacking the buttons like this gives you more notes than with a traditional keyboard design. The C and F notes have hatched patterns so you can feel them instead of looking at the notes.

One cool feature is that the shape of all chord different types have the same shape. That is, all major chords have the same shape, all minor chords have the same shape, etc.

The left hand side is the bass. There are 12 diagonal rows for each chromatic note, giving (from bottom to top):

1. Major 3rd above the root;
2. Root note;
3. Major chord;
4. Minor chord;
5. Minor 7th chord

The bass rows aren't arranged chromatically; they're ordered by the circle of fifths (ascending by fifths, descending by fourths). That puts the I/IV/V chords adjacent to each other.

Very cool. smile

-- David Cuny

My virtual singer development blog
Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?

BiaB 2025 | Windows 11 | Reaper | Way too many VSTis.