I7–IV7–V7
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.
Pattern: I7 – IV7 – V7
Example in C Major: C7 – F7 – G7
Choose a Key
Song Examples
- Stormy Monday — T-Bone Walker
- The Thrill Is Gone — B.B. King