A 9th Guitar Chord

RRootM2Major 2ndM3Major 3rdP5Perfect 5thm7Minor 7th
Explore A9 in ChordColor →

Voicing Positions (6)

×RP5M2M3m7x 0 2 4 2 3
RM3P5m7M2P55 4 2 0 0 0
RM3m7m7M2P55 4 5 0 0 0
3RM3Rm7M2P55 4 7 0 0 0
5×RM2M3m7P5x 0 9 6 8 0
10×RM3m7M2P5x 0 11 0 0 0

Interval Colors

In ChordColor, every interval has a unique color. The colors follow the function of each note relative to the root — so they change when you switch chords.

R
Root
m2
Minor 2nd
M2
Major 2nd
m3
Minor 3rd
M3
Major 3rd
P4
Perfect 4th
♭5
Tritone
P5
Perfect 5th
m6
Minor 6th
M6
Major 6th
m7
Minor 7th
M7
Major 7th

A 9th Chord

The A 9th chord is built from the intervals: Root, Major 2nd, Major 3rd, Perfect 5th, and Minor 7th. It contains the notes A, B, C#, E, and G. As an extended chord, it adds color and depth beyond the basic triad.

Related Chords

Same root (A)

AAmA7Amaj7Am7AdimAaugAsus2

Same quality (9th)

G# 9thA# 9thB 9thD 9thE 9th

See the music. Every interval has a color.

Open ChordColor →