I7–IV7–V7 in F♯ Major
Pattern: I7 – IV7 – V7
Chords: F♯7 – B7 – C♯7
Chord Breakdown
| Numeral | Chord | Type | Function |
|---|---|---|---|
| I7 | F♯7 (details) | dominant seventh | Tonic |
| IV7 | B7 (details) | dominant seventh | Subdominant |
| V7 | C♯7 (details) | dominant seventh | Dominant |
Harmonic Analysis
This progression moves through F♯7 (Tonic) → B7 (Subdominant) → C♯7 (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