I–IV–V–IV in D♭ Major

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

Chord Breakdown

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

Harmonic Analysis

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

This four-bar loop cycles through the three primary blues chords in a symmetrical pattern. The ascending motion to V and descent back to IV creates a rocking, cyclical groove used extensively in blues rock.

Song Examples

Hey Joe — Jimi Hendrix
Gloria — Them

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