Chords
3-Finger chords
Shape chords - Consider that the D, A, and E open chords have a 1, 3 and 5 in the highest 3 strings.
This allows us to keep the same shape (all the while considering an open string in the shape chord to be at the 0th fret. Therefore we must account for that)
Augmented chords
- Given any major triad in the G-B-e strings, if we raise the 5th interval by a semitone, we'll notice that we end up with what looks like the Emaj shape. It doesn't matter which triad shape we use (ie. 1-base, 3-base or 5-base)
Diminished chords
If we take any minor triad in the G-B-e strings, if we raise the 1st interval by a semitone then we will have a diminished chord (built off of that 2nd scale degree). We can take this shape and raise it by 3 frets, and we will have played the same chord, albeit with different voicings.
- as a result, we have 3 different diminished triad shapes that can be played on the G-B-e strings alone (since there is 1-base, 3-base and 5-base)