Chords all over the neck

The same chord can be played in first position and again five frets higher — different shape, same sound. The neck looks unmanageable at first but consists of a few shapes that travel.

The reason lies in how chords are built: a chord is a stack of root, third, and fifth, and which string carries which of those notes is open. With the root at the bottom, the chord is in root position; with the third or fifth at the bottom instead, it's an inversion — same notes, different order, slightly different character, same chord.

Because the pattern can be shifted without changing the distances inside it, one shape produces the same chord type on a new root at any position along the neck. That's the principle behind the barre chord and behind CAGED: five movable base shapes that cover the entire neck.

It's the same spatial advantage as the pentatonic scale — understand one pattern and take it with you instead of learning individual cases.