Folk · Beginner · major key
I–ii–IV–I
I – ii – IV – I — Calm and unhurried, avoiding the V chord entirely.
Chord shapes in G major (standard tuning)
Using a different tuning? Open it in the Looper — it finds playable shapes for whatever tuning you choose.
How the chords work
Written in Roman numerals, this progression is I – ii – IV – I — in C major that is C – Dm – F – C. Each numeral is a step of the scale; upper case is a major chord, lower case minor.
- I — the home chord — the progression feels finished when it lands here.
- ii — a soft minor chord that leads towards V (a "pre-dominant").
- IV — a bright, open chord a fourth above home — the "amen" chord.
I–ii–IV–I in all 12 keys
| Key | Chords | Hear / play |
|---|---|---|
| C major | CDmFC | Looper |
| G major | GAmCG | Looper |
| D major | DEmGD | Looper |
| A major | ABmDA | Looper |
| E major | EF#mAE | Looper |
| B major | BC#mEB | Looper |
| F# major | F#G#mBF# | Looper |
| Db major | DbEbmGbDb | Looper |
| Ab major | AbBbmDbAb | Looper |
| Eb major | EbFmAbEb | Looper |
| Bb major | BbCmEbBb | Looper |
| F major | FGmBbF | Looper |
Practice ideas
- Beginners: play one strum per chord and say the chord names out loud, then two strums, then a steady down-down-up-up-down-up pattern.
- Change keys with a capo: keep the G major shapes and move a capo up — the capo calculator shows which fret gives the key you want.
- Solo over it: loop it in the Looper and improvise with the G major pentatonic or G major scale — the scale pages show every position and play a backing track.
- Train your ear: the progression ear trainer mixes this with similar progressions until you can tell them apart.
Similar progressions
- Celtic I–IV–I–♭VII I – IV – I – ♭VII
- Two-chord I–IV vamp I – IV
- I–vi–IV–I I – vi – IV – I
- Folk ballad (I–iii–vi–IV) I – iii – vi – IV
- I–V–ii / I–V–IV I – V – ii – ii – I – V – IV – IV
- I–ii–iii–ii rocking line I – ii – iii – ii
← I–IV–vi–IV · ii–IV–V–I →
← All 198 chord progressions · Generate a new one
Questions
What chords are in the I – ii – IV – I progression?
In G major: G – Am – C – G. In C major / A minor: C – Dm – F – C. The table on this page lists all 12 keys.
What is the best key to play I – ii – IV – I on guitar?
G major uses the most open-position chord shapes in standard tuning. Use a capo with those shapes to reach other keys.