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F♯ Augmented (F♯aug) Chord Guitar

The low-string augmented barre at the 2nd fret — F♯-A♯-D.

E×DGBEF#F#A#DF#
Root3rd5th

Index finger barres at the 2nd fret; the A string is left unsounded

F#
Root
EBass6th string
Fret2
Finger1 index
×
Not played
A5th string
FretMuted
Finger
F#
Root
D4th string
Fret4
Finger3 ring
A#
3rd
G3rd string
Fret3
Finger2 middle
D
5th
B2nd string
Fret3
Finger2 middle
F#
Root
e1st string
Fret2
Finger1 index
NotesF# – A# – D
Formula1 – 3 – ♯5
Voicing2x4332
TonesF#×3·A#×1·D×1
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Questions about F♯ Augmented (F♯aug)

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

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

How does F♯aug function in the key of B minor?

It stands in for F♯ major, the dominant. Raising the 5th to D adds the note that B minor's own tonic chord contains, so the augmented version leans into the resolution harder than plain F♯ does. It's a common move in flamenco-influenced and neo-classical playing where the dominant needs extra bite.

Related chords

B♭augB♭ Augmented (B♭aug)DaugD Augmented (Daug)F#mF# Minor (F#m)F♯6F♯ Major 6 (F♯6)F#dimF# Diminished (F#dim) Spanish GypsyGenre preset

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