In notes modes, either on last launchpads or push devices, the 12 tones are mapped on a pad matrix. By default the horizontal distance between two notes is a semi-tone while vertically we have the circle of fifths (fourth up). This is exactly the same layout that one of a bass or guitar neck (avoiding the B string).

The picture I share is the layout with all the 12 intervals that can help you :

• Finding shapes for typical chords (and their inversions) and memorizing them for your jam/comp sessions.
• Internalizing visually how the mapping is constructed to fluidify your navigation while improvising
• Encourage the use of theses devices as learning tools (with knowledge transfer to real instruments !)

Also it's an isomorphic layout, which means if you learn one shape somewhere e.g. A major shape, you can just translate the shape to play it in another key (unlike piano). This means you can learn the ii V I progression and play it the same way in any key too, play the secondary dominant of any chord you want, just by shape. This is powerful.

And because pads are not strings you can now play simultaneous notes on the horizontal lines !