I–IV–V–iii–vi in A♭ Major
Pattern: I – IV – V – iii – vi
Chords: A♭ – D♭ – E♭ – Cm – Fm
Chord Breakdown
| Numeral | Chord | Type | Function |
|---|---|---|---|
| I | A♭ (details) | major | Tonic |
| IV | D♭ (details) | major | Subdominant |
| V | E♭ (details) | major | Dominant |
| iii | Cm (details) | minor | Mediant |
| vi | Fm (details) | minor | Submediant |
Harmonic Analysis
This progression moves through A♭ (Tonic) → D♭ (Subdominant) → E♭ (Dominant) → Cm (Mediant) → Fm (Submediant).
A Classical-era progression that begins with a standard cadential setup but diverts through iii to vi, creating a deceptive resolution followed by a mediant color. This technique extends harmonic journeys in sonata and rondo forms.
Song Examples
- Piano Sonata No. 11 in A Major — Wolfgang Amadeus Mozart
- String Quartet Op. 76 No. 3 — Joseph Haydn