The G♭ aug7 Chord Explained
G-flat augmented seventh is an Augmented chord built from the notes G-flat, B-flat, D, and F-flat. Its root is G-flat, and its interval number formula is 1–3–♯5–♭7. In interval names, that gives you the root, major third, augmented fifth, and minor seventh. You may also see this chord written as G-flat aug7, G-flat+7, or G-flat7♯5. If you look at the widget above, you can use the fretboard and piano diagram to spot these chord tones clearly, and hearing the notes together can help you recognize its bright but tense color. If you want to learn more about how these distances are built, see chord intervals.
G♭ aug7 Alternate Names
- G-flat aug7
- G-flat+7
- G-flat7♯5
G♭ aug7 Chord Notes
G♭ aug7 Chord Formula
G♭ aug7 Chord Notation
How To Use G♭ aug7 In Music
Because of its raised fifth, this chord sounds restless, bold, and slightly dramatic, with more tension than a plain dominant-type sound. It often pushes strongly toward a chord a fifth below, so G-flat aug7 can resolve to B major or B minor, depending on the musical style. In a progression, it may appear as V–I in the key of B, or inside a chain like ii–V–I where the G-flat aug7 adds extra pull before the arrival chord. The mood can feel jazzy, mysterious, or theatrical, and the chords around it matter a lot: placed between stable chords it sounds more surprising, but near other tense chords it can feel smooth and intentional. For more context on this family of function, read about dominant chords.
G♭ aug7 Chord Inversions
Another useful way to play this chord is through inversions, which means keeping the same notes but putting a note other than G-flat in the bass. For G-flat augmented seventh, first inversion has B-flat in the bass, second inversion has D in the bass, and third inversion has F-flat in the bass. These inversions do not change the chord’s name or basic quality, but they do change the weight and color of the sound. A root-position version often feels strongest and most direct, while inversions can sound smoother, softer, or more connected to the next chord. Musicians use inversions to make bass lines flow more naturally, reduce large jumps, and create a different emotional shape without changing the harmony itself.
