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

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  1. Chords
  2. /
  3. C
  4. /
  5. 6/9

C 6/9 (C6/9)

CRoot
EMaj 3
GPerf 5
AMaj 6
D9

Lush and bright. Combines 6 and add9. Very common in jazz as a substitute for major 7th chord.

Notes
CEGAD
Formula
1 · 3 · 5 · 6 · 9
Type
Added-tone chord
03

How to play it

EADGBe21312345

C6/9

C 6/9, Open

Bass
C, the root
Root
C
Strings
A D G B e · open
  • CRoot
  • EM3
  • GP5
  • AM6
  • D9

Up the neck

6 voicings, same five notes

Why a 6/9 chord sounds the way it does

C+4 fretsE+3 fretsG+2 fretsA+5 fretsD

Stacked from 4 intervals.

04

Where to go next

More C chords

Same root, other colours

Cmaj7C7Cadd9C6Csus2Csus4Cmaj9

Chords in the key of C

What C6/9 usually sits next to

I · Cii · Dmiii · EmIV · FV · Gvi · Amvii° · B°

Close relatives

Relatives of C major

  • AmRelative minor of C major
  • CmParallel minor, lower the 3rd

Other 6/9 chords

Same quality, every root

C6/9C♯6/9D6/9E♭6/9E6/9F6/9F♯6/9G6/9A♭6/9A6/9B♭6/9B6/9
01

Root

C
02

Quality

6/9

A triad plus one colour note, no 7th. Softer than a 7th.

Alterations need a 7th chord. Try C7 →

Why a 6/9 chord sounds the way it does

C+4 fretsE+3 fretsG+2 fretsA+5 fretsD

Stacked from 4 intervals.

03

How to play it

EADGBe21312345

C6/9

C 6/9, Open

Bass
C, the root
Root
C
Strings
A D G B e · open
  • CRoot
  • EM3
  • GP5
  • AM6
  • D9

Up the neck

6 voicings, same five notes
04

Where to go next

More C chords

Same root, other colours

Cmaj7C7Cadd9C6Csus2Csus4Cmaj9

Chords in the key of C

What C6/9 usually sits next to

I · Cii · Dmiii · EmIV · FV · Gvi · Amvii° · B°

Close relatives

Relatives of C major

  • AmRelative minor of C major
  • CmParallel minor, lower the 3rd

Other 6/9 chords

Same quality, every root

C6/9C♯6/9D6/9E♭6/9E6/9F6/9F♯6/9G6/9A♭6/9A6/9B♭6/9B6/9
C 6/9