Piano chord
F♯ Augmented Chord
F♯aug is an augmented chord built on F♯. It contains the notes F♯ – A♯ – C𝄪.
F♯aug
Also written: F♯+, F♯(♯5), G♭aug
- F♯
- A♯
- C𝄪
Notes in F♯aug
Count up from F♯ using the intervals below. The formula shows each note relative to the F♯ major scale.
| Notes | Intervals | Formula | Semitones |
|---|---|---|---|
| F♯ | Root | 1 | 0 |
| A♯ | Major 3rd | 3 | 4 |
| C𝄪 | Augmented 5th | ♯5 | 8 |
How to play F♯aug on piano
- Right hand: fingers 1–3–5 (thumb on F♯).
- Left hand: fingers 5–3–1 (little finger on the lowest note).
- Press the keys together, then try playing them one at a time as an arpeggio.
F♯aug inversions
An inversion puts a different note of F♯aug at the bottom. The notes stay the same, the colour and voice leading change.
Root position
F♯augF♯ – A♯ – C𝄪
1st inversion
F♯aug/A♯A♯ – C𝄪 – F♯
2nd inversion
F♯aug/C𝄪C𝄪 – F♯ – A♯
About augmented chords
Raise the 5th by one semitone and the chord floats in limbo — neither resolved nor completely tense. Dreamlike and unsettling.
Sound: Mysterious & dreamlike
Songs that use it
- Oh! You Pretty Things · David BowieRock
- Michelle · The BeatlesRock
- The Wizard of Oz · Harold ArlenMusical
Keys that contain F♯aug
F♯aug is built only from notes of these keys. The Roman numeral shows its role in each key.
Hear F♯aug with different sounds and compare it with other chords in the interactive builder.
Open in the chord builderPractising on an acoustic piano that sounds off?
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