Cadd9

Added · C root

Cadd9

A major triad with an added 9th but no 7th. Bright and open.

0 st4 st7 st14 st

Notes in Cadd9

CRoot
E3rd
G5th
D7th

C is the natural starting point — no sharps or flats. The clearest key to hear chord quality in isolation.

Identify the Chord Quality on C

Each chord below is played on C. Listen and identify whether you heard Cadd9, Cm, C7, or another quality — the hardest and most useful ear training skill.

Add 9 in All 12 Keys

Cadd9C#add9D♭add9Dadd9D#add9E♭add9Eadd9Fadd9F#add9G♭add9Gadd9G#add9A♭add9Aadd9A#add9B♭add9Badd9

Other Chords in C

CMajorCmMinorC°DiminishedC+AugmentedCsus2Sus2Csus4Sus4Cmaj7Major 7thCm7Minor 7thC7Dominant 7thCø7Half Diminished

Related Added

Cadd4Add 4

About the Cadd9 Chord

The Cadd9 chord is a add 9 chord built on C. It contains the notes C, E, G, D — the root, third, fifth, and seventh.

A major triad with an added 9th but no 7th. Bright and open. Practising the Cadd9 chord across different voicings and contexts builds the harmonic recognition that lets you identify it instantly in any musical setting — whether in a band mix, a recording, or a live performance.