The I–IV–V–I chord progression

Classic cadence. The most settled-sounding progression there is.

Quick answer

I–IV–V–I in G major is G C D G.

What the I–IV–V–I progression sounds like

The most settled-sounding progression there is. In G major it's G C D G.

You'll find it in Country songwriting.

Scales that fit I–IV–V–I

Over this progression in G, the best-fitting scales are G Major (Ionian), G Mixolydian, G Lydian. Put your own chords into the scale finder to see more.

I–IV–V–I in every key

The I–IV–V–I progression in all 12 major keys
KeyChords
C majorC F G C
G majorG C D G
D majorD G A D
A majorA D E A
E majorE A B E
B majorB E F# B
F# majorF# B C# F#
Db majorDb Gb Ab Db
Ab majorAb Db Eb Ab
Eb majorEb Ab Bb Eb
Bb majorBb Eb F Bb
F majorF Bb C F

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Common questions

What are the chords in the I–IV–V–I progression?
In G major the I–IV–V–I progression is G C D G. The pattern is the same in every key; the table above lists all 12.
What scale goes with I–IV–V–I?
In G, the G Major (Ionian) fits best. G Mixolydian and G Lydian add different colors.

Last updated November 14, 2026.