Basic Mods for CAGED Chords
So once we have some experience with the shapes & understand how they work, we can use them to create other chords by modifying the CAGED shapes.
We can use formulas, or just experiment.
Example formula: minor is R-♭3-5. From a Major chord, we flat (lower, one fret) the 3rd of the chord (wherever it appears). For the E form, the 3rd is the 1 fret on string 3. To create Em, we lower the fretted tone to the open string (G is the flat 3 of E). When we do this, we have Em. This is one way to figure out truckloads of chords.