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Step back and see all seven scales at once — as one scale with six variations. Using the rectangle and stack (across the in-position, diagonal, and single-string views), you'll watch each scale morph into the next by adding or shifting a single note, so the "distance" between any two is usually just one note. The takeaway: the framework isn't only for learning scales, it's a map of how they connect — so mid-phrase, when you want the blues note or the hexatonic's color, you already know exactly where it lives. The single string makes an especially powerful pivot between all the approaches.
What follows is this lesson’s section of the Course Guide — you can read it here or in the full guide →
Seven scales sounds like a lot until you think of it as one scale and six variations. Nothing in this lesson is new. The point is to see the connections that tie them together.
Another idea worth taking away from this module:
Scales aren't sacred. It is fine to add a note, drop a note, or shift a note if the change sounds good or helps you be more creative.
Start with the minor pentatonic rectangle and stack, which is the foundation. Add one note, the ♭5, and you have the blues scale. Go back and add a different note, the 2, and you have the minor hexatonic. Go back again and, instead of adding a note, move one: raise the ♭3 a half step to a 3, and you have a dominant pentatonic. In all three cases, the root stays exactly where it was.
Now move the root instead, and you have the major pentatonic, with the shapes completely untouched. From there, add a ♭3, and you have the major blues scale, which is the same shapes as the minor blues with a different root. Or raise the 6 to a ♭7 and you have the other dominant pentatonic.
The same idea works with every visualization method in the module. Chain either rectangles or stacks diagonally, and you add or shift the same note inside each shape. Build any of the five in-position forms and do the same. And on a single string, if you ignore the extra note, each pair of notes is still one string of a rectangle or a stack, so all the off-ramps into diagonal and in-position playing are still there.
Shifting a note is harder to visualize than adding one. The sequence of shapes stays the same, but the shapes themselves morph a little, and that is worth some slow practice.
The distance between any two of these seven scales is usually a single note. If you are playing the minor pentatonic and want the color of the minor hexatonic in the middle of a phrase, it is right there. If the blues scale would sound better in that moment, you already know where that note lives.
The rectangle and stack isn't only a system for learning scales. It is a way of seeing how scales relate to each other, so that when you want to reach for something, you know exactly where it is.
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