A Minor 9 (Am9) Chord Guitar

A rich, nocturnal minor 9th anchored by the open A.

A minor 7th with an added 9th (1-♭3-5-♭7-9) — deep and nocturnal.
The sophisticated core sound of neo-soul and jazz.
Anchored by the open A string for a full, lush ring.
Sounds like late-night R&B.

Root9th3rd5th7th

Not played

E6th string

FretMuted

Finger—

Root

ABass5th string

FretOpen

Finger—

5th

D4th string

Fret2

Finger2 middle

9th

G3rd string

Fret4

Finger4 pinky

3rd

B2nd string

Fret1

Finger1 index

7th

e1st string

Fret3

Finger3 ring

NotesA – E – B – C – G

Formula1 – ♭3 – 5 – ♭7 – 9

Voicingx02413

TonesA×1·C×1·E×1·G×1·B×1

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This chord sounds even better than it looks.

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Questions about A Minor 9 (Am9)

What notes are in a A Minor 9 (Am9) chord?

A A Minor 9 (Am9) chord contains the notes A, E, B, C, G. It is built from the minor 9th formula 1 - ♭3 - 5 - ♭7 - 9, with A as the root.

What is the difference between Am9 and Am7?

Am9 is an Am7 with one extra note: the 9th (B). Am7 (A-C-E-G) already sounds smooth and jazzy; adding the 9th makes it richer and more atmospheric still. The 9th is what gives neo-soul and jazz their signature lush minor sound, which is why Am9 is often chosen over a plain Am7.

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