Chord Information
Learn how to play G7 on piano
Notes in Chord
Intervals
Inversion
Notes (bottom to top): G4 - B4 - D5 - F5
Right Hand Fingering
3=middle, 4=ring, 5=pinky
Interactive Piano
Click the highlighted keys to play the G7 chord
About the G7 Chord
The G7 chord is one of music's most powerful harmonic tools—a chord that creates irresistible tension demanding resolution. Built from G-B-D-F, the dominant seventh chord combines the strength of a major triad with the restless energy of a minor seventh interval. This combination creates a sound that has driven everything from classical cadences to blues progressions for centuries.
What makes G7 special is its relationship to C major. As the V7 chord in the key of C, G7 contains the leading tone (B) that pulls toward C, plus the seventh (F) that wants to fall to E. This double tension makes the resolution to C major feel inevitable and satisfying—it's the harmonic equivalent of a deep inhale before exhale.
Beyond its classical function, G7 is the backbone of blues and early rock 'n' roll. The slightly dissonant quality of the dominant seventh gives blues its characteristic tension, that "not quite resolved" feeling that makes you want to keep listening. Every pianist should master G7 as it unlocks both classical harmony and blues expression.
Music Theory & Usage
G7 is the dominant (V7) chord in the key of C major, making it perhaps the most important chord for understanding tonal harmony. The tritone interval between B and F (the 3rd and 7th of the chord) creates instability that naturally resolves to the stability of C major. This V7-I resolution is the foundation of Western harmony.
In blues and jazz, G7 often functions as the I7 chord (in the key of G blues) or as part of a ii-V-I progression. The 12-bar blues pattern relies heavily on dominant seventh chords. In jazz standards, G7 frequently appears in turnarounds and as a secondary dominant (V7/IV) leading to C in keys like F major.
Famous Songs Using G7
Hear how professional musicians use the G7 chord in these well-known songs:
“Johnny B. Goode”
by Chuck Berry
The iconic rock 'n' roll intro uses G7 as the foundation of its blues-based progression
“Twist and Shout”
by The Beatles
G7 appears as part of the song's energetic D-G-A progression variation
“Blue Moon”
by Richard Rodgers
Classic example of ii-V-I with G7 resolving to Cmaj7
“Sweet Home Chicago”
by Robert Johnson
Uses G7 in the traditional 12-bar blues progression
How to Play G7 on Piano
- Place your thumb on G.
- Place your index finger on B.
- Place your middle finger on D.
- Place your pinky finger on F.
- Press all keys simultaneously to hear the G7 chord.
Recommended fingering: 1-2-3-5 (right hand)
G7 Chord Inversions
The G7 chord can be played in different inversions:
Root Position
G - B - D - F (bass note: G)
First Inversion
B - D - F - G (bass note: B)
Second Inversion
D - F - G - B (bass note: D)
Common Chord Progressions Using G7
ii-V-I Jazz Progression
Common chord progression
I-vi-ii-V Progression
Common chord progression
Practice Tips for G7
- Start slowly and focus on pressing all keys simultaneously for a clean sound.
- Practice transitioning between G7 and other common chords to build muscle memory.
- Listen carefully to how the seventh interval creates tension and color in the chord.
- Practice resolving this chord to its natural target chords in progressions.
Frequently Asked Questions about G7
What is the difference between G major and G7?
G major is a three-note triad (G-B-D), while G7 adds the minor seventh (F), making it a four-note chord (G-B-D-F). This added F creates tension and a strong pull toward resolution, especially to C major. G major sounds stable and complete; G7 sounds like it needs to go somewhere.
Why does G7 resolve to C major so naturally?
G7 contains two notes that have strong tendencies: B wants to move up to C (it's the leading tone), and F wants to move down to E. When both notes resolve simultaneously, you get C and E—two-thirds of the C major chord. This voice leading makes the G7 to C resolution one of the strongest in music.
What is a tritone and why is it important in G7?
The tritone is the interval between B and F in G7—exactly six semitones, or half an octave. This interval is highly dissonant and unstable, historically called the "devil's interval." In G7, the tritone creates the tension that makes the chord want to resolve. When it resolves to C major, B moves to C and F moves to E, releasing the tension.
Can I substitute other chords for G7?
Yes! The most famous substitution is the tritone substitution: Db7 can replace G7 because they share the same tritone (B/Cb and F). Other options include G7alt (with altered extensions), Dm7-G7 (adding a ii chord), or G13 for a jazzier sound. Each substitution maintains the resolution function while changing the color.