The progression
I – V – vi – IV: in C, C – G – Am – F. It is probably the most used pop progression since the 1980s. The Australian comedy trio The Axis of Awesome made it famous in 2009 with the medley 4 Chords, which shows dozens of hits built on the same four chords.
The four rotations
The same chord cycle, with a different starting point, changes character:
| Rotation | C major | Character | Examples |
|---|---|---|---|
| I – V – vi – IV | C G Am F | sunny, “anthem” | Journey, Don't Stop Believin' (E B C#m A); U2, With or Without You (D A Bm G); Adele, Someone Like You (A E F#m D) |
| vi – IV – I – V | Am F C G | melancholy (“sensitive female chord progression”) | Avicii, Wake Me Up (Bm G D A); Luis Fonsi, Despacito (Bm G D A); The Cranberries, Zombie (Em C G D) |
| IV – I – V – vi | F C G Am | suspended, “waiting” | many pop-rock choruses |
| V – vi – IV – I | G Am F C | drive |
The vi – IV – I – V rotation is ambiguous: it can be heard in A minor (i – bVI – bIII – bVII) or in C major. In songs where the minor chord is clearly the tonic (like Zombie), it is more correct to analyze it in minor.
Why it works
- It contains the three functions (T: C and Am; S: F; D: G) in an order that never fully cadences: after IV it returns to I, a “hidden” plagal cadence.
- The bass C – G – A – F alternates leaps and steps: easy to sing and to play.
- Pentatonic melodies (C D E G A) sit well over all four chords.
- The repetition creates a hypnotic loop over which the melody does all the work.
How to make it your own
- Inversions: C – G/B – Am – F (bass C B A F, descending).
- Extensions: Cadd9 – G – Am7 – Fmaj7.
- Borrowed chords: C – G – Am – Fm (on the final repeat: minor plagal).
- Harmonic rhythm: 2 chords per bar in the pre-chorus, 1 per bar in the chorus.
- Different rotation between verse and chorus: verse vi – IV – I – V, chorus I – V – vi – IV (same material, different emotion).
- Replacing the V with iii: C – Em – Am – F (softer).
Common mistakes
- Using it without a strong melodic idea: the loop alone is not enough.
- All chords in root position and in the same octave: it sounds like a “tutorial.” Work on voicings and voice leading.
Producer exercise
- Write the four rotations as four patterns (1 chord per bar, 120 BPM).
- Over each one, sing (or play) the same 4-bar pentatonic melody.
- Choose the rotation that makes the lyrics feel best and use a different rotation for the next section.
Related
Pop progressions and loops, the 50s progression (doo-wop), Pachelbel's progression, Aeolian and Locrian, K-pop and modern pop progressions.