The A Minor 7th chord is a four-note chord made up of A, C, E, and G. It is built from a root, minor third, perfect fifth, and minor seventh.
Construction
| Note | Interval | Degree |
|---|---|---|
| A | Root | 1 |
| C | Minor 3rd | ♭3 |
| E | Perfect 5th | 5 |
| G | Minor 7th | ♭7 |
A Minor 7th Inversions



| Position | Notes |
|---|---|
| Root Position | A – C – E – G |
| 1st Inversion | C – E – G – A |
| 2nd Inversion | E – G – A – C |
| 3rd Inversion | G – A – C – E |
Key Signature
A chord has no key signature of its own, but the A Minor 7th is the tonic (i) chord of A Minor, which shares the signature of its relative major, C Major — no sharps or flats.
Chords in the Key of A Minor
These are the triads built on each degree of the A minor scale:
How A Minor 7th functions in a key
The same chord takes on a different harmonic role depending on the key it appears in. Here is where A Minor 7th sits diatonically across the common keys:
- In C major, A Minor 7th is the vi chord — the tonic.
- In A minor, A Minor 7th is the i chord — the tonic.
- In G major, A Minor 7th is the ii chord — a predominant.
- In E minor, A Minor 7th is the iv chord — a predominant.
- In F major, A Minor 7th is the iii chord — a mediant / color chord.
- In D minor, A Minor 7th is the v chord.
Same Notes, Other Names
The notes A – C – E – G aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell: