F Augmented 7th
Hear the F Augmented 7th chord played for you.
F+7
F – A – D♭ – E♭
Formula:R-M3-A5-m7
Intervals:P1-M3-A5-m7
Scale Degrees:1-3-#5-b7
Introduction
The F Augmented 7th chord is a four-note chord made up of F, A, D♭, and E♭. It is built from a root, major third, augmented fifth, and minor seventh.
The F Augmented 7th piano chord (F+7) consists of the notes F, A, Db, Eb. It is an augmented triad with an added minor 7th, giving it a bright, tense, and unresolved character with a strong upward pull. Formula: R-M3-A5-m7 | Scale degrees: 1-3-#5-b7.
Notes
F Augmented 7th Inversions
| Position | Notes |
|---|---|
| Root Position | F – A – Db – Eb |
| 1st Inversion | A – Db – Eb – F |
| 2nd Inversion | Db – Eb – F – A |
| 3rd Inversion | F – A – Db – Eb |
Key Signature
The key of F Augmented 7th 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.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of F Major
These are the diatonic triads built on each degree of the F major scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I — F Major (major)
Theory: Intervals
Formula: R-M3-A5-m7
Intervals: P1-M3-A5-m7
The F Augmented 7th is built by stacking intervals from the root note. The formula R-M3-A5-m7 describes the scale degrees used. The intervals P1-M3-A5-m7 show the distance between each note in the chord.
F Augmented 7th — Frequently Asked Questions
What notes are in the F Augmented 7th chord?
The F Augmented 7th chord (F+7) contains four notes: F (root), A (major third), C# (augmented fifth), and Eb (minor seventh). It combines an augmented triad with a minor seventh.
How does F Augmented 7th differ from F Dominant 7th?
Both contain F, A, and Eb. F+7 has C# (augmented fifth) while F7 has C (perfect fifth). The raised fifth adds extra tension and upward chromatic pull.
How is F Augmented 7th used in music?
F+7 is an altered dominant resolving to Bb Major. The C# pulls up to D while Eb pulls down to D — converging on the third of Bb. Common in jazz, gospel, and R&B.
What genres use Augmented 7th chords?
Augmented 7th chords are common in jazz, gospel, blues, and R&B for adding colour to dominant resolutions.
What songs use Augmented 7th chords?
Augmented 7th chords appear in jazz standards and gospel. F+7 resolves to Bb Major, a common key for jazz and brass music.
What is the difference between +7 and 7#5?
They are the same chord. F+7, F7#5, and Faug7 all refer to F Augmented 7th.
Practice Tips
- Play F7 then raise C to C# — hear the augmented fifth's extra chromatic tension.
- Practice F+7 → Bb Major. C# and Eb both resolve to D — converging voice leading.
- Compare F+7 with F7 — both target Bb, but +7 is richer and more dramatic.
- In jazz: Cm7 → F+7 → Bbmaj7 adds colour to the ii–V–I in Bb.
- F+7 is a gospel favourite — try it before the IV chord for emotional weight.
- The augmented triad (F–A–C#) divides the octave symmetrically into three major thirds.
Related Tools
Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.