F

Faug7

Notes

F · A · C# · Eb

Intervals

  • RootF (1P)
  • Major 3rdA (3M)
  • Augmented 5thC# (5A)
  • Minor 7thEb (7m)

Fretboard

EBGDAE357912FAC#D#C#D#FAAC#D#FD#FAC#AC#D#FAFAC#D#

On the fretboard, D# represents Eb.

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About

The Faug7 (FAC♯E♭) raises the fifth, replacing the perfect fifth with an augmented fifth. The C♯ adds a floating, upward-pulling quality to the dominant sound — unlike the inward pull of the ♭5, the ♯5 creates outward tension that resolves naturally when the chord moves to a tonic; here the natural target is B♭. The 3rd, ♭7, and ♯5 are all essential; the ♯5 is what distinguishes this from a plain F7. Common in jazz and blues as a voice-leading tool — the ♯5 often resolves up to the third of the tonic chord. Compared to F7♭5, aug7 feels more expansive and less claustrophobic.

Similar chords

Chords sharing two or more notes with this one, ranked by overlap.

Scales containing this chord

Scales whose notes include every chord tone. Roman numeral marks the chord root’s position in the scale; dashed badges aren’t linked yet.

Other Dominant ♯5 (aug7) chords

Other F chords