Knowing five shapes is not the same as being able to use them. What turns them into one neck is the join: the place where one box ends and the next has already begun. Look at the first two together.
Where the first two boxes join
Box 1 and Box 2 share six notes.
This diagram shows Box 1 and Box 2 together. The six ringed notes belong to both positions, spread across six strings. If you move from one position to the other through those notes, the listener hears one continuous line.
Six ringed notes, one on every string. Whichever string your finger is on, there is a note within reach that belongs to the box you are in and to the one above it. That note is a door, and there is one on every string because of how the shapes overlap — which is true at every join, in every key.
Change position on a shared note
The move itself is small. You play up to one of those notes, and while it is ringing your hand slides so that the same note is now under a different finger. Nothing changes in the sound. What has changed is where your hand is, and the next note can be one the old box could not reach.
Do it anywhere else and the seam shows. A jump between two shapes, landing on a note that belongs only to the new one, sounds like a guitarist changing position — which is a thing listeners hear, and rarely the thing you want them to hear.
Across the seam
Across the seam, over A7: ♭3 C, 4 D, 5 E, ♭7 G, 1 A, ♭3 C, 4 D, ♭3 C, 1 A.
Nine notes over eight beats. It starts on the ♭3, and comes to rest on the root, with vibrato. The hand shifts once: from the fifth fret to the eighth, after the ♭3 on beat four. The dashed lines are the notes of A7, and that last note is one of them.
The first six notes of this are the call from Part 2, note for note. There the phrase stopped on that high ♭3, pushed it a semitone into the chord’s third and held it, and the holding is what made it a question. Here you leave the note alone and move instead, and the line carries on above the box it started in.
Play it slowly and watch your hand rather than the tab. One shift, on the eighth fret of the top string, and the two halves are the same phrase.
The same door, all the way up
And where the next two join
Box 2 and Box 3 share six notes.
This diagram shows Box 2 and Box 3 together. The six ringed notes belong to both positions, spread across six strings. If you move from one position to the other through those notes, the listener hears one continuous line.
Six shared notes again, one on each string. This is why the map is worth less than the joins: you do not have to learn five shapes and then learn how to travel between them. Learn one join properly and you have learned all of them, because they are the same overlap moved up the neck.
This lesson was drafted with the help of AI, so it may contain a mistake. Its diagrams are drawn by Everyfret’s own software. How Everyfret is made