Index Finger Mechanics
In a barre chord your index finger presses every string at one fret. Everyone struggles at first — usually not from lack of strength but from using the wrong source of force.
- Roll the finger slightly onto its side: use the bony edge facing your thumb rather than the soft pad. Keep the knuckle creases off the strings.
- Stay close to the fret wire: the open-chord rule matters even more here.
- Pull with your arm, don't squeeze with your thumb: the thumb gives light support behind the neck. Real pressure comes from letting your elbow drop back/down slightly and using the weight of your arm. On electric, pressing the body toward you with your picking forearm helps too.
- Only press what matters: in F, the index finger only really needs to sound strings 6, 2 and 1; other fingers cover the rest.
- Check string by string: hold the chord and pick each string. Find the dead one and shift the finger a millimetre at a time.
Work your way down: try the barre at the 5th fret first (strings are looser there), then the 3rd, finally the 1st. Five minutes a day is enough; stop when your hand tires.
Movable Shapes (E & A Shapes)
The magic of barre chords: slide one shape to get 12 different chords. Whatever note the shape's root (R) sits on names the chord.
E shape — root on string 6
Move the open E chord up with your index finger as a "capo". At fret 3 it's G, at fret 5 it's A.
A shape — root on string 5
Where's the root?
| Fret | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| String 6 (E shape) | E | F | F♯/G♭ | G | G♯/A♭ | A | A♯/B♭ | B | C | C♯/D♭ | D | D♯/E♭ | E |
| String 5 (A shape) | A | A♯/B♭ | B | C | C♯/D♭ | D | D♯/E♭ | E | F | F♯/G♭ | G | G♯/A♭ | A |
Example: a song asks for C♯m. On string 5, C♯ is at fret 4 → play the Am shape at fret 4.
Power Chord Reference Table
A power chord is just root + fifth (often plus the octave). With no third it's neither major nor minor, and it sounds great with distortion — the backbone of rock and punk.
| Fingering | Strings | When |
|---|---|---|
| 2 notes (R–5): fingers 1 and 3 | 6–5 or 5–4 | Fast riffs, punk |
| 3 notes (R–5–R): fingers 1, 3, 4 | 6–5–4 or 5–4–3 | Fuller rock sound |
| One finger ("drop D") | Bottom 3 strings in Drop D | Metal, grunge |
e|-------------------------| B|-------------------------| G|-------------------------| D|-5---5---7---7---5---5---| A|-5---5---7---7---3---3---| E|-3---3---5---5-----------|