C6/9
C6/9 is the c six-nine chord, spelled C – E – G – A – D. the sixth and ninth together — a plush, settled ending chord that never feels heavy.
The keys
C – E – G – A – D
Practise this chord
Plug in your MIDI keyboard and let Coach Tshepho drill you on C6/9 — it plays the chord, names any wrong notes as you play, and moves you on when you nail it.
Create your free account →What's inside C6/9
| Note | Interval from root | Degree |
|---|---|---|
| C | Root | 1 |
| E | Major 3rd | 3 |
| G | Perfect 5th | 5 |
| A | Major 6th | 6 |
| D | Major 9th | 9 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | C2 – G2 |
| Right (colour) | E4 – A4 – D5 |
Where C6/9 lives
As the I chord
C6/9 → F → G → C6/9
The classic I–IV–V–I motion with this chord as home.
In a ii–V–I
Dm7 → G7 → C6/9
The strongest cadence in harmony, resolving onto this chord.
Put C6/9 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →More C chords
C
Cm
Cdim
Caug
Csus2
Csus4
C6
Cm6
C7
Cmaj7
Cm7
Cm7♭5
Cdim7
Cm(maj7)
C9
Cmaj9
Cm9
Cadd9
Cm11
C13
C7♭9
C7♯9
C7♯5Play it over a groove
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