TwinkleLab

Acoustic · Beginner · major key

I–Isus2–I–Isus4 shimmer

I – Isus2 – I – Isus4 — One chord, decorated with sus2 and sus4 — great with open strings.

AcousticBeginnerMajor key4 chords

Easiest guitar key: C major

CICsus2Isus2CICsus4Isus4

Chord shapes in C major (standard tuning)

C chord — EADGBE tuning (X-3-2-0-1-0)C×CEGCE
X-3-2-0-1-0
Csus2 chord — EADGBE tuning (X-3-0-0-1-3)Csus2×CDGCG
X-3-0-0-1-3
Csus4 chord — EADGBE tuning (X-3-3-0-1-1)Csus4×CFGCF
X-3-3-0-1-1

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 – Isus2 – I – Isus4 — in C major that is C – Csus2 – C – Csus4. Each numeral is a step of the scale; upper case is a major chord, lower case minor.

I–Isus2–I–Isus4 shimmer in all 12 keys

KeyChordsHear / play
C major
CCsus2CCsus4
Looper
G major
GGsus2GGsus4
Looper
D major
DDsus2DDsus4
Looper
A major
AAsus2AAsus4
Looper
E major
EEsus2EEsus4
Looper
B major
BBsus2BBsus4
Looper
F# major
F#F#sus2F#F#sus4
Looper
Db major
DbDbsus2DbDbsus4
Looper
Ab major
AbAbsus2AbAbsus4
Looper
Eb major
EbEbsus2EbEbsus4
Looper
Bb major
BbBbsus2BbBbsus4
Looper
F major
FFsus2FFsus4
Looper

Practice ideas

Similar progressions

← Imaj7–I6 vamp · Isus4–I–IVsus2–IV →

← All 198 chord progressions · Generate a new one

Questions

What chords are in the I – Isus2 – I – Isus4 progression?

In C major: C – Csus2 – C – Csus4. In C major / A minor: C – Csus2 – C – Csus4. The table on this page lists all 12 keys.

What is the best key to play I – Isus2 – I – Isus4 on guitar?

C major uses the most open-position chord shapes in standard tuning. Use a capo with those shapes to reach other keys.

Alternate tuning chords

More tunings

Free guitar tools

TwinkleLab

Free, open-in-your-browser guitar studio for alternate tunings: playable chord voicings, fretboard maps, tuner, tension calculator, odd-time looper and tab/MIDI export. Built by a guitarist, funded by listeners.

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