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An interactive reference for guitar chord shapes, voicings and the theory behind them.

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  1. Chords
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  3. C♯
  4. /
  5. Sus4

C♯ suspended 4th (C♯sus4)

C♯Root
F♯Perf 4
G♯Perf 5

Anticipatory and unresolved. Replaces the 3rd with a 4th. Common in rock and pop as a transition chord.

Notes
C♯F♯G♯
Formula
1 · 4 · 5
Type
Suspended 4th triad
03

How to play it

EADGBe341212345

C♯sus4

C♯ suspended 4th, 1fr

Bass
C♯, the root
Root
C♯
Strings
A D G B · 1st fret
  • C♯Root
  • F♯P4
  • G♯P5

Up the neck

6 voicings, same three notes

Why it sounds suspended 4th

C♯+5 fretsF♯+2 fretsG♯

Stacked from 2 intervals. Compare with C♯sus2 →

04

Where to go next

More C♯ chords

Same root, other colours

C♯maj7C♯7C♯add9C♯6C♯sus2C♯maj9C♯6/9

Chords in the key of D♭

What C♯sus4 usually sits next to

I · D♭ii · E♭miii · FmIV · G♭V · A♭vi · B♭mvii° · C°

Close relatives

Relatives of D♭ major

  • B♭mRelative minor of D♭ major
  • C♯mParallel minor, lower the 3rd

Other Sus4 chords

Same quality, every root

Csus4C♯sus4Dsus4E♭sus4Esus4Fsus4F♯sus4Gsus4A♭sus4Asus4B♭sus4Bsus4
01

Root

C♯
02

Quality

Sus4

3 notes: root, 3rd, 5th. Every other chord is built on one of these.

Alterations need a 7th chord. Try C♯7 →

Why it sounds suspended 4th

C♯+5 fretsF♯+2 fretsG♯

Stacked from 2 intervals. Compare with C♯sus2 →

03

How to play it

EADGBe341212345

C♯sus4

C♯ suspended 4th, 1fr

Bass
C♯, the root
Root
C♯
Strings
A D G B · 1st fret
  • C♯Root
  • F♯P4
  • G♯P5

Up the neck

6 voicings, same three notes
04

Where to go next

More C♯ chords

Same root, other colours

C♯maj7C♯7C♯add9C♯6C♯sus2C♯maj9C♯6/9

Chords in the key of D♭

What C♯sus4 usually sits next to

I · D♭ii · E♭miii · FmIV · G♭V · A♭vi · B♭mvii° · C°

Close relatives

Relatives of D♭ major

  • B♭mRelative minor of D♭ major
  • C♯mParallel minor, lower the 3rd

Other Sus4 chords

Same quality, every root

Csus4C♯sus4Dsus4E♭sus4Esus4Fsus4F♯sus4Gsus4A♭sus4Asus4B♭sus4Bsus4
C♯ suspended 4th