C 6th chord on guitar (C6)

Also called or written C6 or C

C 6th contains C, E, G and A. The 7th fret shape bars the A and D strings with the index finger while the pinky reaches the 9th fret.

7frCEAEGEADGBE
Positions on the neck1 of 5
Practice C 6th chord

How it is built

CRootEMajor thirdGPerfect fifthAMajor sixth

Formula 1, 3, 5, 6

Inversions

How do you play a C 6th chord on guitar?

C 6th is played at the 7th fret as 8 7 7 9 8 ×: barre your index finger across fret 7, middle finger on the low E string at fret 8, pinky finger on the G string at fret 9 and ring finger on the B string at fret 8. The high e string stays muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)82C (1)
5 (A)71 (barre)E (3)
4 (D)71 (barre)A (6)
3 (G)94E (3)
2 (B)83G (5)
1 (e)muted

AdvancedThe index barre must fret the A and D strings at the 7th fret while the pinky stretches to the 9th fret G string, which requires finger independence.

10th fret

C 6th is played at the 10th fret as × × 10 12 10 12: index finger on the D string at fret 10, ring finger on the G string at fret 12, middle finger on the B string at fret 10 and pinky finger on the high e string at fret 12. The low E and A strings stay muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)muted
5 (A)muted
4 (D)101C (1)
3 (G)123G (5)
2 (B)102A (6)
1 (e)124E (3)

C6/E inversion · 0-0-2-0-1-0 — the easy shape, no barre

C 6th is played in open position as 0 0 2 0 1 0: middle finger on the D string at fret 2 and index finger on the B string at fret 1. The low E, A, G and high e strings ring open.

Full note and interval breakdown
StringFretFingerNote
6 (E)openE (3)
5 (A)openA (6)
4 (D)22E (3)
3 (G)openG (5)
2 (B)11C (1)
1 (e)openE (3)

C6/E inversion · 0-0-2-0-1-3

C 6th is played in open position as 0 0 2 0 1 3: middle finger on the D string at fret 2, index finger on the B string at fret 1 and ring finger on the high e string at fret 3. The low E, A and G strings ring open.

Full note and interval breakdown
StringFretFingerNote
6 (E)openE (3)
5 (A)openA (6)
4 (D)22E (3)
3 (G)openG (5)
2 (B)11C (1)
1 (e)33G (5)

C6/E inversion · 0-0-2-2-1-3

C 6th is played in open position as 0 0 2 2 1 3: middle finger on the D string at fret 2, ring finger on the G string at fret 2, index finger on the B string at fret 1 and pinky finger on the high e string at fret 3. The low E and A strings ring open.

Full note and interval breakdown
StringFretFingerNote
6 (E)openE (3)
5 (A)openA (6)
4 (D)22E (3)
3 (G)23A (6)
2 (B)11C (1)
1 (e)34G (5)

Why it sounds like that

C 6th is built from the formula 1, 3, 5, 6. The major sixth A added to the C major triad gives the chord a bright, jazzy colour. Compare it with C major, which has only three notes.

What goes wrong with C 6th?

  • Letting the high e string ring: mute it with the ring finger, or the open E clashes with the chord.
  • Not pressing the barre hard enough on the D string, causing a buzz.
  • Flattening the pinky onto the B string and deadening it.

When to use it

C 6th is the tonic in C major, heard in the I–IV–V–I progression C–F–G–C. Its jazzy colour suits swing and blues. Use it to add sophistication to a C major chord in a turnaround.

Changing to and from C 6th

  • Sliding the shape down one fret to the 6th fret gives B 6th; the barre and fingers move as a unit.

Which voicing to use

The 7th fret shape keeps the root C in the bass and is the most common movable form. The C6/E inversion at the open position places the third E in the bass, which gives a lighter, more open sound.

Other C chords

Common questions

How does C 6th differ from C major 7th?

C 6th adds the sixth A, while C major 7th adds the seventh B. The sixth gives a warmer, more consonant sound than the seventh.

Can I play C 6th with a barre at the 10th fret?

Yes, the 10th fret shape is a partial barre with the root on the D string. It is useful for higher register playing.

Why is the high e string muted in the 7th fret shape?

The high e is a chord tone, but muting it keeps the voicing compact and avoids doubling the root too high.