Acoustic · Intermediate · major key
Isus4–I–IVsus2–IV
Isus4 – I – IVsus2 – IV — Suspended chords resolving gently — airy singer-songwriter sound.
Easiest guitar key: G major
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 Isus4 – I – IVsus2 – IV — in C major that is Csus4 – C – Fsus2 – F. Each numeral is a step of the scale; upper case is a major chord, lower case minor.
- Isus4 — the home chord — the progression feels finished when it lands here.
- IVsus2 — a bright, open chord a fourth above home — the "amen" chord.
Isus4–I–IVsus2–IV in all 12 keys
| Key | Chords | Hear / play |
|---|---|---|
| C major | Csus4CFsus2F | Looper |
| G major | Gsus4GCsus2C | Looper |
| D major | Dsus4DGsus2G | Looper |
| A major | Asus4ADsus2D | Looper |
| E major | Esus4EAsus2A | Looper |
| B major | Bsus4BEsus2E | Looper |
| F# major | F#sus4F#Bsus2B | Looper |
| Db major | Dbsus4DbGbsus2Gb | Looper |
| Ab major | Absus4AbDbsus2Db | Looper |
| Eb major | Ebsus4EbAbsus2Ab | Looper |
| Bb major | Bbsus4BbEbsus2Eb | Looper |
| F major | Fsus4FBbsus2Bb | 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
- Acoustic add9 loop Iadd9 – V – vi – IVadd9
- Falling IV–iii–ii–I IV – iii – ii – I
- Extended Canon turnaround I – V – vi – iii – IV – I – ii – V
- I–V–vi–iii–IV I – V – vi – iii – IV
- I–vi–iii–IV I – vi – iii – IV
- Funky 9th-chord blues I9 – IV9 – I9 – I9 – IV9 – IV9 – I9 – I9 – V9 – IV9 – I9 – V9
← I–Isus2–I–Isus4 shimmer · Power-chord I–♭VII–IV →
← All 198 chord progressions · Generate a new one
Questions
What chords are in the Isus4 – I – IVsus2 – IV progression?
In G major: Gsus4 – G – Csus2 – C. In C major / A minor: Csus4 – C – Fsus2 – F. The table on this page lists all 12 keys.
What is the best key to play Isus4 – I – IVsus2 – IV on guitar?
G major uses the most open-position chord shapes in standard tuning. Use a capo with those shapes to reach other keys.