I–V–IV–I in A♭ Major

Pattern: I – V – IV – I Chords: A♭ – E♭ – D♭ – A♭

Chord Breakdown

Numeral	Chord	Type	Function
I	A♭ (details)	major	Tonic
V	E♭ (details)	major	Dominant
IV	D♭ (details)	major	Subdominant
I	A♭ (details)	major	Tonic

Harmonic Analysis

This progression moves through A♭ (Tonic) → E♭ (Dominant) → D♭ (Subdominant) → A♭ (Tonic).

This circular progression leaves the tonic, peaks at the dominant, descends through the subdominant, and returns home. It creates a satisfying round-trip journey common in folk singalongs.

Song Examples

Country Roads — John Denver
Leaving on a Jet Plane — John Denver

Chord Details

A♭ E♭ D♭

More Progressions in A♭ Major

I–IV–V–I I–V–vi–IV I–vi–IV–V ii–V–I I–IV–V I–♭VII–IV vi–IV–I–V I–V–vi–iii–IV–I–IV–V I–IV I–V IV–V IV–I