Chord
A Minor 9 Chord
Interactive keyboard
Highlighted notes form this chord.
Notes
A · C · E · G · B
Root: A
Intervals
1 · ♭3 · 5 · ♭7 · 9
How it is built
This chord starts on A and applies the intervals 1, ♭3, 5, ♭7, 9. The result contains 5 distinct pitch classes per octave.
Explore related combinations
Guide and musical context
About A Minor 9 Chord
A Minor 9 Chord contains A, C, E, G, B. Its sound is deep, smooth and spacious.
Character and sound
Deep, smooth and spacious.
Musical context and history
The minor ninth extends m7 with a ninth and is a standard sound in jazz, soul, R&B and modern keyboard and guitar harmony.
How and where it is used
It can act as ii, a minor tonic or a sustained modal chord.
In Theory view you can hear the pitch collection without depending on a specific fingering. Then switch to Piano, Guitar, Ukulele or Mandolin to see how the same notes are physically distributed on each instrument.
Harmonic and musical relationships
The A minor harmony can be compared with its parallel major, which keeps the same root, and its relative major at C. The dominant a fifth above, E, is another important reference.
The formula on this page is 1 · ♭3 · 5 · ♭7 · 9 and, from A, produces the notes A · C · E · G · B.
Frequently asked questions
What notes are in the A Minor 9 Chord?
The notes are A, C, E, G, B.
What is its interval formula?
The formula is 1 · ♭3 · 5 · ♭7 · 9.
How does it sound and what is it used for?
Deep, smooth and spacious. It can act as ii, a minor tonic or a sustained modal chord.
Can I view it on a specific instrument?
Yes. Use the selector near the top to switch between Piano, Guitar, Ukulele and Mandolin without changing the musical combination you are studying.