Skip to content

Dominant 9th Chords on Piano

The dominant 9th chord extends the dominant 7th by adding the ninth — creating a rich, bluesy, soulful voicing. It is one of the most important extended chords in jazz, blues, funk, and R&B.

Formula: Root – Major 3rd – Perfect 5th – Minor 7th – Major 9th
Scale degrees: 1–3–5–♭7–9
Sound: Rich, bluesy, soulful, funky
Symbol: 9 (C9, D9)

The blues and funk chord: In blues, every chord can be a 9th — I9, IV9, V9. In funk, the 9th chord is the default voicing. The ninth adds colour and depth to the dominant 7th's tension without changing its function. Drop the 5th for a practical four-note voicing.

Dominant 9th Chord in All 18 Keys

C Dominant 9th Chord
C# Dominant 9th Chord
Db Dominant 9th Chord
D Dominant 9th Chord
D# Dominant 9th Chord
Eb Dominant 9th Chord
E Dominant 9th Chord
F Dominant 9th Chord
F# Dominant 9th Chord
Gb Dominant 9th Chord
G Dominant 9th Chord
G# Dominant 9th Chord
Ab Dominant 9th Chord
A Dominant 9th Chord
A# Dominant 9th Chord
Bb Dominant 9th Chord
B Dominant 9th Chord
Cb Dominant 9th Chord