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Learn the A Dominant 9th Chord on PianoA9Dominant 9th

Extended blues sound

Chord Information

Learn how to play A9 on piano

Notes in Chord

A
C#
E
G
B

Intervals

1
M3
P5
m7
M9

Inversion

Notes (bottom to top): A4 - C#5 - E5 - G5 - B4

Right Hand Fingering

Fingers: 1-2-3-4-5
1=thumb, 2=index
3=middle, 4=ring, 5=pinky

Interactive Piano

Click the highlighted keys to play the A9 chord

Click any key to load sounds
A
B
C
D
E
F
G
A#
C#
D#
F#
G#

How to Play A9 on Piano

  1. Place your thumb on A.
  2. Place your index finger on C#.
  3. Place your middle finger on E.
  4. Place your ring finger on G.
  5. Place your pinky finger on B.
  6. Press all keys simultaneously to hear the A9 chord.

Recommended fingering: 1-2-3-4-5 (right hand)

A9 Chord Inversions

The A9 chord can be played in different inversions:

Root Position

A - C# - E - G - B (bass note: A)

First Inversion

C# - E - G - B - A (bass note: C#)

Second Inversion

E - G - B - A - C# (bass note: E)

Common Chord Progressions Using A9

ii-V-I Jazz Progression

Common chord progression

Bm7A9Emaj7

I-vi-ii-V Progression

Common chord progression

Emaj7C#m7Bm7A9

Practice Tips for A9

  • Start slowly and focus on pressing all keys simultaneously for a clean sound.
  • Practice transitioning between A9 and other common chords to build muscle memory.
  • Extended chords can be challenging - ensure each note rings clearly.
  • Experiment with voicing variations by omitting the fifth or other notes for different textures.

Quick Reference

Root NoteA
Qualitydominant9
NotesA-C#-E-G-B
Fingering1-2-3-4-5
Categoryextended

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