Ballad · Intermediate · major key
I–iii–IV–iv
I – iii – IV – iv — A gentle climb that ends on the minor iv — wistful and cinematic.
Chord shapes in A 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 – iii – IV – iv — in C major that is C – Em – F – Fm. 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.
- iii — a gentle minor chord that shares two notes with I.
- IV — a bright, open chord a fourth above home — the "amen" chord.
- iv — the minor four chord: darker and more emotional.
I–iii–IV–iv in all 12 keys
| Key | Chords | Hear / play |
|---|---|---|
| C major | CEmFFm | Looper |
| G major | GBmCCm | Looper |
| D major | DF#mGGm | Looper |
| A major | AC#mDDm | Looper |
| E major | EG#mAAm | Looper |
| B major | BD#mEEm | Looper |
| F# major | F#A#mBBm | Looper |
| Db major | DbFmGbGbm | Looper |
| Ab major | AbCmDbDbm | Looper |
| Eb major | EbGmAbAbm | Looper |
| Bb major | BbDmEbEbm | Looper |
| F major | FAmBbBbm | 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 A 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 A major pentatonic or A 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
- I–I7–IV–iv I – I7 – IV – iv
- Minor plagal (I–IV–iv–I) I – IV – iv – I
- Imaj7–IVmaj7–iv6–Imaj7 Imaj7 – IVmaj7 – iv6 – Imaj7
- Bird blues (Parker changes) Imaj7 – viiø7 – III7 – vi7 – II7 – v7 – I7 – IV7 – iv7 – ♭VII7 – iii7 – VI7 – ii7 – ♭III7 – ii7 – V7
- I–vi–I–vi–IV–V ballad I – vi – I – vi – IV – V – I – V
- Anime chorus climb (IV–V–iii–vi–IV–V–I) IV – V – iii – vi – IV – V – I – I
← Extended Canon turnaround · I–vi–IV–ii–V →
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Questions
What chords are in the I – iii – IV – iv progression?
In A major: A – C#m – D – Dm. In C major / A minor: C – Em – F – Fm. The table on this page lists all 12 keys.
What is the best key to play I – iii – IV – iv on guitar?
A major uses the most open-position chord shapes in standard tuning. Use a capo with those shapes to reach other keys.