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
| Key | Chords |
|---|---|
| C major | C F G C |
| G major | G C D G |
| D major | D G A D |
| A major | A D E A |
| E major | E A B E |
| B major | B E F# B |
| F# major | F# B C# F# |
| Db major | Db Gb Ab Db |
| Ab major | Ab Db Eb Ab |
| Eb major | Eb Ab Bb Eb |
| Bb major | Bb Eb F Bb |
| F major | F 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.