F Augmented Chord (Faug) on Piano
The Faug chord (F augmented) is built from 3 notes: F – A – C#.
Play these notes on a MIDI keyboard, your computer keyboard, or the on-screen keys and ChordKeys will name the chord back to you.
Notes and intervals
| Note | Degree | Interval from F | Semitones |
|---|---|---|---|
| F | 1 | root | 0 |
| A | 3 | major 3rd | 4 |
| C# | #5 | augmented 5th | 8 |
Inversions
Rearranging which note sits at the bottom gives you 3 playable voicings of the same chord. Inversions let you move between chords with less hand movement.
| Voicing | Notes | Bass note |
|---|---|---|
| Root position | F – A – C# | F in the bass |
| 1st inversion | A – C# – F | A in the bass |
| 2nd inversion | C# – F – A | C# in the bass |
How the augmented chord is built
Every augmented chord uses the same interval formula: 1 (0 semitones), 3 (4 semitones), #5 (8 semitones). Starting on F and applying that formula produces F, A, C#. Learn the formula once and you can build a augmented chord on any of the twelve roots.
Other chords on F
Augmented chords on other roots
Frequently asked questions
What notes are in a Faug chord?
A Faug chord contains the notes F, A, C#. Those are the 1, 3, #5 degrees measured from the root note F.
How do you play Faug on piano?
Place your thumb on F, then add A and C# above it. With a right hand in root position the common fingering is 1–3–5.