I–iii–IV–V in G Major

Pattern: I – iii – IV – V Chords: G – Bm – C – D

Chord Breakdown

Numeral	Chord	Type	Function
I	G (details)	major	Tonic
iii	Bm (details)	minor	Mediant
IV	C (details)	major	Subdominant
V	D (details)	major	Dominant

Harmonic Analysis

This progression moves through G (Tonic) → Bm (Mediant) → C (Subdominant) → D (Dominant).

The iii chord acts as a smooth stepping stone between I and IV, adding a touch of minor color. This creates an elegant, ascending quality that works beautifully in ballads and mid-tempo songs.

Song Examples

Every Breath You Take — The Police
Grow Old with Me — John Lennon

Chord Details

G Bm C D

More Progressions in G 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