I–IV–V7 in B Major
Pattern: I – IV – V7
Chords: B – E – F♯7
Chord Breakdown
| Numeral | Chord | Type | Function |
|---|---|---|---|
| I | B (details) | major | Tonic |
| IV | E (details) | major | Subdominant |
| V7 | F♯7 (details) | dominant seventh | Dominant |
Harmonic Analysis
This progression moves through B (Tonic) → E (Subdominant) → F♯7 (Dominant).
Adding a seventh to the dominant chord gives this three-chord progression its unmistakable blues flavor. The V7 creates a stronger pull back to I than a plain V, giving it that classic blues urgency.
Song Examples
- Key to the Highway — Big Bill Broonzy
- Before You Accuse Me — Eric Clapton