Listen to a week of radio and you will hear the same handful of chord progressions over and over. That is not laziness. A progression is a route through a key that the ear finds satisfying, and there are only so many satisfying routes. Once you know the common ones by name and by sound, learning songs, writing them and improvising over them all get much faster.
This guide names the progressions you will meet most often, shows them in Roman numerals so they work in any key, gives well-known examples, and ends with a practical way to check what a song is really doing.
A one-minute refresher on Roman numerals
Chords built on each note of a major scale are numbered I to vii. Upper case means major, lower case means minor. In C major: I = C, ii = Dm, iii = Em, IV = F, V = G, vi = Am, vii° = Bdim. Writing progressions this way lets you move a song to any key without renaming everything, and it makes the family resemblance between songs obvious.
If the numerals are new to you, the scales and chords reference shows every key at a glance, and lesson 7 of the theory course covers harmony from the ground up.
Pop progressions
I–V–vi–IV (C–G–Am–F). The most used progression of the last thirty years. It opens bright, dips into the relative minor and lifts back out. Examples include "Let It Be" (Beatles), "No Woman, No Cry" (Bob Marley), "With or Without You" (U2) and "Someone Like You" (Adele). Start anywhere in the loop and you get a different mood: vi–IV–I–V (Am–F–C–G) is the darker "sensitive" version used in "Zombie" (Cranberries) and countless ballads.
I–vi–IV–V (C–Am–F–G). The 50s progression, or doo-wop changes: "Stand by Me", "Earth Angel", "Every Breath You Take". Slower and more nostalgic than I–V–vi–IV because the minor chord comes early.
I–IV–V (C–F–G). Three chords and the truth. "La Bamba", "Twist and Shout", most folk and country, and the backbone of the blues below. If you can play these three in a few keys, you can accompany hundreds of songs.
vi–IV–I–V and I–V–vi–iii–IV. Longer loops that add the iii chord for a little more colour. "Canon in D" by Pachelbel is essentially I–V–vi–iii–IV–I–IV–V, and pop has borrowed it ever since.
Rock progressions
I–bVII–IV (C–Bb–F). The Mixolydian sound of classic rock. The flattened seventh chord is not in the major scale, which is exactly why it sounds tough. "Sweet Child o' Mine" (verse), "Sympathy for the Devil", "Hey Jude" (outro).
i–bVII–bVI–bVII (Am–G–F–G). The natural-minor rock loop. "All Along the Watchtower", "Stairway to Heaven" (solo section), "Rolling in the Deep".
I–IV–vi–V and IV–I–V–vi. Rotations of the pop loop that many rock choruses favour because the chorus can land on I or on IV for a lift.
Power-chord riffs on i–bIII–bVII. Am–C–G in A minor; the sound of a great deal of punk and grunge, often with the chords played as fifths only.
Blues and the 12-bar form
The 12-bar blues is a fixed twelve-measure pattern built on I, IV and V, usually as dominant seventh chords:
| Bars 1–4 | Bars 5–8 | Bars 9–12 |
|---|---|---|
| I – I – I – I | IV – IV – I – I | V – IV – I – V |
In A: A7 for four bars, D7 for two, A7 for two, E7, D7, A7, E7. "Johnny B. Goode", "Hound Dog", "Sweet Home Chicago" and thousands of jazz and rock songs use it or a variation. The "quick change" version moves to IV already in bar 2. Jazz players add ii–V turnarounds in bars 9 to 12 and substitute chords freely, but the skeleton stays.
Jazz progressions
ii–V–I (Dm7–G7–Cmaj7). The single most important progression in jazz. The ii chord prepares the dominant, the dominant resolves home. Learn to hear it and half of any standard becomes readable. Songs are often chains of ii–V–I in different keys: "Autumn Leaves", "All the Things You Are", "Fly Me to the Moon".
I–vi–ii–V (Cmaj7–Am7–Dm7–G7). Rhythm changes, from Gershwin's "I Got Rhythm". The A section of dozens of bebop tunes, and the turnaround at the end of countless choruses.
iii–vi–ii–V. The same idea starting one chord earlier; a common way to turn around into the top of a form.
Minor ii–V–i (Dm7b5–G7b9–Cm). The minor-key version, with a half-diminished ii and an altered dominant. "Autumn Leaves" moves between the major and minor versions constantly.
Tritone substitution and the backdoor. Replacing G7 with Db7 (a tritone away) or approaching I from bVII7 (Bb7 to Cmaj7) are the standard ways jazz musicians disguise a ii–V–I. If a chord "should" be V and sounds stranger, one of these is usually happening.
How to hear them
Progressions are patterns of tension and release, and the bass line usually gives them away.
- Find the home chord first. It is where the song rests, usually the last chord of the chorus. Everything else is measured against it. Our guide to finding the key of a song walks through this step.
- Listen for the drop to vi. The move from I to vi (C to Am) has a distinctive softening; it is the moment in I–V–vi–IV where the mood shifts.
- Listen for the pull of V. A dominant chord wants to go home. If a chord makes you lean forward, it is probably V (or a substitute).
- Count bars. Most pop progressions are four chords over four or eight bars. If a progression seems longer, you are probably hearing two loops, a verse loop and a chorus loop.
The ear training tool has a chord-progression mode that plays exactly these patterns and asks you to name them, which turns recognition into a habit within a few weeks. How to identify chord progressions by ear describes a practice routine for it.
Check any song in a minute
When your ear is unsure, get a second opinion. Paste a YouTube or SoundCloud link into the chord analyzer and it returns the key and every chord change with timing, synced to the video. Convert the chords to Roman numerals from the detected key and the progression names above will jump out: most songs turn out to be one of them, or two of them alternating between verse and chorus. Over 180,000 songs are already analysed in the chord library if you want to browse rather than analyse.
Using progressions in your own writing
Borrowing a progression is not stealing a song; melody, rhythm, lyric and arrangement are what make a song recognisable, and every progression here is in the public domain many times over. Two habits make borrowed progressions feel fresh:
- Change the rhythm and the starting chord. vi–IV–I–V is the same chords as I–V–vi–IV with a different mood, and pushing the changes off the downbeat changes the feel entirely.
- Add one chord outside the key. A bVII in a pop loop, a secondary dominant (D major in C, leading to G) or a borrowed iv (Fm in C) gives the ear one surprise per cycle, which is usually all a song needs.
Try it on the virtual piano: the chord pads play full voicings, so you can cycle through these progressions with one finger and hear how each one behaves before you write a note of melody.