Chord Progressions Explained: I–IV–V, I–V–vi–IV and More

By Wikum · August 24, 2026 · 4 min read · Theory

Once you know a few chords, you start noticing that many songs use the same chords in the same order. That's not laziness by songwriters — certain chord movements are simply satisfying to the ear. Learning these progressions makes songs easier to learn by ear, easier to remember, and gives you building blocks for writing your own.

Chords come in families

Every major key has seven chords built from its scale. In the key of C they are:

The pattern of qualities — major, minor, minor, major, major, minor, diminished — is identical in every major key. That's why musicians use Roman numerals: upper case for major, lower case for minor. “I–IV–V” means the same thing in every key: C–F–G in C, G–C–D in G, D–G–A in D.

Why progressions work: tension and release

The I chord is home. The V chord is the most “restless” — it contains a note one step below the home note that wants to resolve upwards. Moving from V back to I is the strongest resolution in music; you hear it at the end of almost every song. IV is a softer move away from home, and vi is home's moody sibling, sharing two of its three notes with I.

1. I – IV – V (the three-chord song)

G – C – D      A – D – E      E – A – B

The foundation of blues, early rock 'n' roll, folk and country. Countless songs use nothing else. In the key of A, it's also the 12-bar blues (see below).

2. I – V – vi – IV (the pop progression)

G – D – Em – C      C – G – Am – F      D – A – Bm – G

Possibly the most-used progression of the last few decades. It feels uplifting and slightly bittersweet because of the minor vi. Start the same loop on vi (Em – C – G – D) and the identical chords sound darker and more anthemic.

3. vi – IV – I – V

Am – F – C – G      Em – C – G – D

A minor-sounding rotation of the pop progression, popular in emotional ballads and alternative rock.

4. I – vi – IV – V (the '50s progression)

C – Am – F – G      G – Em – C – D

The doo-wop sound of countless 1950s and early '60s love songs. It still sounds sweet and nostalgic today.

5. ii – V – I (the jazz cadence)

Dm7 – G7 – Cmaj7      Am7 – D7 – Gmaj7

The backbone of jazz standards. The ii chord leads into V, which resolves to I. Even in pop, a ii before a V makes the arrival home feel stronger.

6. The 12-bar blues

| A7 | A7 | A7 | A7 |
| D7 | D7 | A7 | A7 |
| E7 | D7 | A7 | E7 |

Twelve bars, three chords (I, IV, V), usually all played as dominant sevenths for a bluesy sound. Once you know the form, you can jam with almost any blues musician: they'll just tell you the key.

7. I – bVII – IV (the rock “borrowed” chord)

D – C – G      A – G – D      E – D – A

The bVII chord isn't in the major key — it's borrowed from the Mixolydian mode. It gives a big, open classic-rock sound. If you put this into the key finder, it will flag the bVII as outside the key, which is exactly what makes it distinctive.

Hearing progressions in songs

Next time you listen to a song, try to feel when it lands on “home” — that's I. Then listen for the chord that feels like it's leaning back towards home: that's usually V. With practice you'll recognise the pop progression or I–IV–V within a few bars, which makes learning songs by ear much faster. Our guide on finding the key of a song goes deeper into this.

Write your own

Pick a key whose chords you know (G is ideal), choose four chords from its family, and loop them with a strumming pattern. Start on I, end on V or IV so the loop wants to repeat. Try changing just one chord — swap IV for ii, or vi for iii — and listen to how the mood shifts. That's how songwriting starts.