Notice that the Ionian root note of each mode box is always on the fourth string and always on a box's down-scale fret.
------- oOo -------
Likewise each root note of each mode is always similarly located in a common place in a mode box.
The box transposes up and down the neck with this modal math always intact; With the modes in any box relative to the Ionian of where the box is mentally thought to be on the fretboard. |