I–IV–I–V in D♭ Major

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

Chord Breakdown

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

Harmonic Analysis

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

This compact four-bar pattern shuttles between the three primary blues chords, returning to I in the middle. It works as a simplified blues form and appears as a turnaround in longer blues structures.

Song Examples

Mannish Boy — Muddy Waters
I'm Your Hoochie Coochie Man — Muddy Waters

Chord Details

D♭ G♭ A♭

More Progressions in D♭ 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