G7 Chord
G7 adds F to the G major triad. That flat seventh makes it useful before a chord whose root lies a fifth below G.
- Notes: G-B-D-F
- Symbol: G7
- V7 in C major
- Flat seventh
G7
How to play a G7 chord
Notes: G - B - D - FG7
Root position
G - B - D - F1st inversion
B - D - F - G2nd inversion
D - F - G - B3rd inversion
F - G - B - D
Where does G7 belong?
In C major, G7 acts as V7 and points toward the tonic.
Play the role cards to hear how its surrounding chords change the job it does; Diatonic Chords explains the basic numbered roles.
- DominantV7
It resolves to C: B rises to C and F falls a half step.
CFG7V7C - Minor-key dominantV7
The same pull in C minor, where harmonic minor supplies the raised B.
CmFmG7V7Cm - Blues homeI7
In a 12-bar blues the home chord is itself a 7 chord, and it does not need to resolve.
G7I7C7G7D7 - Secondary dominantII7
In F major it borrows a pull toward C, the V of that key.
FG7II7CF
Progressions to try
- CFG7C
G7 is V7 in C major; hear its seventh and third lean into the last chord.
- CmFmG7Cm
The same dominant shape leads into a minor tonic in C minor.
- G7C7G7D7
In G blues, the tonic itself carries a seventh; the loop returns to G7 without losing that blues color.
- FG7CF
G7 briefly acts as a secondary dominant, pointing toward the chord after it rather than the main tonic.
Which shape should you use?
On guitar, start with the open 320001 grip. Let the open strings ring and keep any strings marked x silent. The 353433 shape gives you another position when the neighboring chords sit elsewhere on the neck.
On ukulele, the open shape 0212 is the easiest place to start. The 4535 grip moves the chord to another register.
On piano, play G-B-D-F. Move G up an octave to reach the first inversion, B-D-F-G; the notes remain the same while the lowest voice changes.
What are the inversions?
G is the root, B the major third, D the fifth and F the flat seventh, ten semitones above the root.
- Root position: G-B-D-F, with G lowest.
- First inversion: B-D-F-G, written G7/B if B is lowest in the whole arrangement.
- Second inversion: D-F-G-B, written G7/D if D is lowest in the whole arrangement.
- Third inversion: F-G-B-D, written G7/F if F is lowest in the whole arrangement.
A slash chord names the note in the bass, not merely the lowest note under one hand. Chord Inversions shows how to read that distinction.
How does G7 differ from Gmaj7?
Keep G, B and D; raise the seventh from F to F sharp. The result is Gmaj7, whose major seventh changes the pull. Try that one-note change on piano, then use the comparer to hear it in the full chord. See Gmaj7 for the other chord's full spelling and roles.
G7
G - B - D - FGmaj7
G - B - D - F#