The key of G major is the most popular key for guitar. Its chords fall naturally under the fingers with mostly open shapes, and it’s the key of countless classic songs. Here’s your complete guide.
The 7 Chords in the Key of G Major
| Numeral | Chord | Type | Notes |
|———|——-|——|——-|
| I | G | Major | G – B – D |
| ii | Am | Minor | A – C – E |
| iii | Bm | Minor | B – D – F# |
| IV | C | Major | C – E – G |
| V | D | Major | D – F# – A |
| vi | Em | Minor | E – G – B |
| vii° | F#dim | Diminished | F# – A – C |
The key of G has one sharp: F#.
Guitar Chord Shapes
Five of the seven chords are easy open chords, making G the most guitar-friendly key:
G Major (I)
The home chord. Middle on 3rd fret (6th string), index on 2nd fret (5th string), ring on 3rd fret (1st string). All 6 strings.
Am (ii)
Index 1st fret (2nd string), middle 2nd fret (4th string), ring 2nd fret (3rd string). Strings 1-5.
Bm (iii)
The only challenging chord — it requires a barre. Barre 2nd fret, add Am shape above. X24432.
C Major (IV)
Ring 3rd fret (5th string), middle 2nd fret (4th string), index 1st fret (2nd string). Strings 1-5.
D Major (V)
Index 2nd fret (3rd string), ring 3rd fret (2nd string), middle 2nd fret (1st string). Strings 1-4.
Em (vi)
Middle 2nd fret (5th string), ring 2nd fret (4th string). All 6 strings. The easiest chord.
F#dim (vii°)
Rarely needed. When it appears, use 2X232X.
Piano Chord Shapes
G: G-B-D | Am: A-C-E | Bm: B-D-F# | C: C-E-G | D: D-F#-A | Em: E-G-B | F#dim: F#-A-C
Remember: every F is sharped in this key.
Common Progressions in G
I – IV – V (G – C – D)
The three-chord wonder. Used in: “Sweet Home Alabama,” “Bad Moon Rising,” “Twist and Shout.”
I – V – vi – IV (G – D – Em – C)
The modern pop standard. Used in: “Wagon Wheel,” “Let Her Go,” “Counting Stars.”
I – vi – IV – V (G – Em – C – D)
The classic progression. Used in: “Stand By Me,” “Every Breath You Take.”
vi – IV – I – V (Em – C – G – D)
The emotional pop progression. Used in: “Zombie,” “Boulevard of Broken Dreams.”
I – IV – vi – V (G – C – Em – D)
Used in: “Brown Eyed Girl,” “Have You Ever Seen the Rain.”
Songs in the Key of G
– Wagon Wheel — G, D, Em, C
– Sweet Home Alabama — G (actually D), C, G
– Bad Moon Rising — G, C, D
– Knockin’ on Heaven’s Door — G, D, Am, C
– Brown Eyed Girl — G, C, D, Em
– Country Roads — G, Em, D, C
– Ring of Fire — G, C, D
– Three Little Birds — G, C, D
Why G Is the Best Guitar Key
The key of G uses five open chords (G, Am, C, D, Em) and only one barre chord (Bm) — which can often be substituted with a simpler Bm7 or avoided entirely. This makes it the most comfortable key for acoustic guitar playing, which is why so many classic guitar songs are written in G.