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C♯ Augmented (C♯aug) Chord Guitar

A moveable augmented shape with the root on the 5th string, up at the 4th fret.

The C♯ major triad with the 5th raised from G♯ to A.
A fully moveable shape with the root on the 5th string — no open strings.
Shares its notes with Faug and Aaug, so one grip covers three roots.
Useful as an altered dominant leading back toward F♯ minor.

Root3rd5th

Not played

E6th string

FretMuted

Finger—

Root

ABass5th string

Fret4

Finger1 index

5th

D4th string

Fret7

Finger4 pinky

Root

G3rd string

Fret6

Finger3 ring

3rd

B2nd string

Fret6

Finger3 ring

5th

e1st string

Fret5

Finger2 middle

NotesC# – A – F

Formula1 – 3 – ♯5

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TonesC#×2·F×1·A×2

Hear It For Yourself

This chord sounds even better than it looks.

Load C♯ Augmented (C♯aug) onto an interactive fretboard, hear every note, and build it into a progression.

Play C♯aug in the Studio →

Questions about C♯ Augmented (C♯aug)

What notes are in a C♯ Augmented (C♯aug) chord?

A C♯ Augmented (C♯aug) chord contains the notes C#, A, F. It is built from the augmented formula 1 - 3 - ♯5, with C# as the root.

Is C♯aug the same chord as Faug?

They contain exactly the same three notes — C♯, F and A — so on their own they sound identical. What separates them is context: whichever note the bass and the surrounding progression treat as home becomes the root. Naming it C♯aug rather than Faug is a statement about where the music is, not about the sound of the chord itself.

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