Altered dominant
in B major
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Piano chord · also written F♯7♯5
The G♭ Augmented 7th chord on piano is made of the notes G♭, B♭, D and F♭. Bold and unresolved. An augmented triad with a dominant 7th.
Tap any key to hear it.
4 notes, built 1 – 3 – ♯5 – ♭7 up from G♭.
Fingers are numbered 1 (thumb) to 5 (little finger) on both hands.
Each inversion puts a different note of the chord in the bass. Written as a slash chord: G♭7♯5/B♭, G♭7♯5/D, G♭7♯5/F♭.
Tap the notes on the keyboard, then check. Six chords, starting with this one.
1 / 6 Tap the notes of G♭ Augmented 7th (G♭7♯5)
Score 0
Any octave, any order. Each key you tap plays.
G♭ Augmented 7th (G♭7♯5) has 4 notes: G♭, B♭, D and F♭. Its formula is 1 – 3 – ♯5 – ♭7, counted up from G♭.
Put your right thumb on G♭ and play G♭, B♭, D and F♭ with fingers 1 – 2 – 3 – 5. With the left hand, use fingers 5 – 3 – 2 – 1, little finger on G♭.
On the piano, yes: F♯7♯5 (F♯, A♯, D, E) uses exactly the same keys as G♭7♯5 (G♭, B♭, D, F♭). Which name is used depends on the key of the piece; G♭7♯5 is the more common spelling.
1st inversion: B♭, D, F♭, G♭ (G♭7♯5/B♭). 2nd inversion: D, F♭, G♭, B♭ (G♭7♯5/D). 3rd inversion: F♭, G♭, B♭, D (G♭7♯5/F♭).