I7–IV7–V7 in G Major

Pattern: I7 – IV7 – V7 Chords: G7 – C7 – D7

Chord Breakdown

Numeral	Chord	Type	Function
I7	G7 (details)	dominant seventh	Tonic
IV7	C7 (details)	dominant seventh	Subdominant
V7	D7 (details)	dominant seventh	Dominant

Harmonic Analysis

This progression moves through G7 (Tonic) → C7 (Subdominant) → D7 (Dominant).

Using all dominant seventh chords, this three-chord progression is the harmonic DNA of the blues. The seventh chords add grit and tension that define the blues sound.

Song Examples

Stormy Monday — T-Bone Walker
The Thrill Is Gone — B.B. King

Chord Details

G7 C7 D7

More Progressions in G Major

I–IV–V–I I–V–vi–IV I–vi–IV–V ii–V–I I–IV–V I–♭VII–IV vi–IV–I–V I–V–vi–iii–IV–I–IV–V I–IV I–V IV–V IV–I