I–IV–ii–V in A♭ Major

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

Chord Breakdown

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

Harmonic Analysis

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

This progression moves through the subdominant and supertonic before reaching the dominant, creating a polished harmonic cycle. The ii–V motion at the end gives it a sophisticated finish common in pop songwriting.

Song Examples

I Want It That Way — Backstreet Boys
Beautiful Day — U2

Chord Details

A♭ D♭ Bbm E♭

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