I used to work with the fellow who created these mappings. He gave a demo of it with a flute playing colleague. It was neat to see.
It made it a easier for the hands to reach the tricky notes.
Could help you add a little flavor to your Jethro Tull covers
Now we need linkage to the chart for standing on one leg...
Seeing this back in middle school when I was first learning to play would have radically changed how I thought of the instrument - not just “press these buttons, get this note.”