Cadd9 Chord on Guitar

Notes C E G D. Start with open Cadd9 (x 3 2 0 3 0): the open C shape with the index finger lifted off string 2 and the pinky on string 2 fret 3 instead.

Chord · Cadd9 added 9th

Cadd9 chord, Open Cadd9×3C2EG4DE

Open Cadd9 · x 3 2 0 3 0
open strings

1 C3 E5 G9 D

Voicing · 4 shapes, easiest first
Fingers, low to high
  • String 6 (low E): muted, do not play
  • String 5 (A): ring (3), fret 3
  • String 4 (D): middle (2), fret 2
  • String 3 (G): open
  • String 2 (B): pinky (4), fret 3
  • String 1 (high e): open

Notes and formula

DegreeNoteInterval from C
1Croot
3Emajor 3rd
5Gperfect 5th
9Dmajor 9th

Formula 1 3 5 9 (added 9th).

Also written C add 9.

Easier stand-in

C

C shape×321

Plain C has the same root, 3rd and 5th without the D, so it fits wherever Cadd9 is written. Cadd9 sounds more open; C is the fallback while the pinky is still slow.

Keys that contain Cadd9

KeyCadd9 is the
C major Iadd9
F major Vadd9
G major IVadd9
E minor VIadd9
A minor IIIadd9
D minor VIIadd9

Minor keys here use the natural minor scale.

Playing Cadd9: what goes wrong

Cadd9 is C plus D

C major is C, E, G. Cadd9 keeps all three and adds D, the 9th. In the open shape the B string moves from fret 1 (C) to fret 3 (D); ring and middle fingers stay where they are in open C.

The shape that sits next to G and D

x 3 2 0 3 3 has fret 3 on strings 2 and 1, the same two notes (D and G) as the four-finger G (3 2 0 0 3 3) and Dsus4 (x x 0 2 3 3). From that G, ring and pinky stay down; middle and index each move over one string. In D (x x 0 2 3 2), the ring finger on string 2 fret 3 is already in place.

Start the strum on string 5

String 5 at fret 3 is C, the root. String 6 is not played: the open low E is a chord tone (the 3rd), but it puts E in the bass.

Related chords

  • Cmajor
  • Cmminor
  • C7dominant 7th
  • Cm7minor 7th
  • Cmaj7major 7th
  • C6major 6th
  • C9dominant 9th
  • C5power chord
  • Cdimdiminished
  • FIV in C major
  • GV in C major

Learn and practise Cadd9

FAQ

What notes are in Cadd9?

C, E, G, D: the 1, 3, 5, 9 of the Cadd9 added 9th chord.

What is the difference between Cadd9 and Csus2?

Both contain D. Cadd9 keeps E, the 3rd (C E G D), so it is still a major chord. Csus2 replaces the 3rd with D (C D G), so it is neither major nor minor.

Is Cadd9 the same as C9?

No. C9 is a dominant chord: C, E, G, B♭ and D. Cadd9 has no 7th, only C, E, G and D.

All chords: the full chord directory