i–♭VI–♭VII in B♭ Minor
Pattern: i – ♭VI – ♭VII
Chords: Bbm – G♭ – A♭
Chord Breakdown
| Numeral | Chord | Type | Function |
|---|---|---|---|
| i | Bbm (details) | minor | Tonic |
| ♭VI | G♭ (details) | major | Submediant |
| ♭VII | A♭ (details) | major | Subtonic |
Harmonic Analysis
This progression moves through Bbm (Tonic) → G♭ (Submediant) → A♭ (Subtonic).
The i–♭VI–♭VII progression leaps from the minor tonic to the flat sixth before stepping up to the flat seventh, creating a sense of escape and release. This three-chord pattern avoids the dominant entirely, keeping the harmony floating in natural minor. It is a cornerstone of hard rock and metal.
Song Examples
- Iron Man — Black Sabbath
- Paranoid — Black Sabbath