Root position F♯aug
F♯ – A♯ – C𝄪
Right hand 1-3-5Left hand 5-3-1
F♯ Augmented Chord on Piano
F♯aug F♯ A♯ C𝄪 Formula 1 3 #5 3 notes
Also written G♭ aug: the same keys under another name.
Notes
What notes are in the F♯ Augmented chord?
The F♯ Augmented chord has 3 notes: F♯, A♯, C𝄪. Two major thirds stacked: 4 half steps, then 4 more. The raised fifth makes it unstable, and the three notes split the octave in equal parts. Spelled by the rules of harmony, C𝄪 is the D key on the keyboard.
| Note | Interval from the root | Half steps |
|---|---|---|
| F♯ | Root | 0 |
| A♯ | Major 3rd | 4 |
| C𝄪 (the D key) | Augmented 5th | 8 |
Inversions and fingering
Every way to play F♯ Augmented
The same notes in a different order. The lowest note changes the name after the slash; the fingering below is the usual one - right hand from the lowest key up, left hand from the lowest key up too.
1st inversion F♯aug/A♯
A♯ – C𝄪 – F♯
Right hand 1-2-5Left hand 5-3-1
The piano studio names these keys A♯aug: the same notes, read from another root.
2nd inversion F♯aug/D
C𝄪 – F♯ – A♯
Right hand 1-3-5Left hand 5-2-1
The piano studio names these keys Daug: the same notes, read from another root.
Where it lives
Keys and scales with F♯ Augmented
Every key where F♯aug is one of the seven chords, with its Roman numeral, and the scales whose notes include all of it - the ones to improvise over it.
F♯aug is not a diatonic chord of any major or natural minor key.
Scales that contain all its notes
Questions
Frequently asked
What notes are in the F♯ Augmented chord?
The F♯ Augmented chord (F♯aug) is made of F♯, A♯, C𝄪. Its formula is 1 3 #5 - the root, then the intervals of a augmented chord.
How do you play F♯aug on the piano?
Put your right thumb on F♯ and play the other notes with fingers 1-3-5. With the left hand, use fingers 5-3-1 from the lowest key up.
What are the inversions of F♯aug?
root position F♯aug (F♯ A♯ C𝄪); 1st inversion F♯aug/A♯ (A♯ C𝄪 F♯); 2nd inversion F♯aug/D (C𝄪 F♯ A♯).
Is F♯ Augmented the same as G♭ aug?
On the piano, yes: the same keys. The name changes with the key you are in - sharps in sharp keys, flats in flat keys.
Play it for real
Hold F♯aug and build a progression on it
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