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



| Position | Notes |
|---|---|
| Root Position | F – A – C – E |
| 1st Inversion | A – C – E – F |
| 2nd Inversion | C – E – F – A |
| 3rd Inversion | E – F – A – C |
Key Signature
A chord has no key signature of its own, but the F Major 7th is the tonic (I) chord of F Major, whose key signature has 1 flat (B♭).
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of F Major
These are the triads built on each degree of the F major scale:
How F Major 7th functions in a key
The same chord takes on a different harmonic role depending on the key it appears in. Here is where F Major 7th sits diatonically across the common keys:
- In F major, F Major 7th is the I chord — the tonic.
- In A minor, F Major 7th is the VI chord — the tonic.
- In C major, F Major 7th is the IV chord — a predominant.
- In D minor, F Major 7th is the III chord — a mediant / color chord.