Bass · augmented
F♯aug Chord on Bass
F# Augmented is F#, A#, D — the 1-3-#5 pattern of a augmented chord. Here is the shape, the audio, and what usually goes wrong.
There is no open F#aug on bass. The one shape below sits up the neck and is rated advanced.
Start here — Root-3-#5 Shape (2nd fret)
Fingered low on the neck with no barre — a useful middle step between the open shape and the movable ones.
What beginners get wrong
Moving in and out of it
The shape above: Root-3-#5 Shape (2nd fret).
Listening: each shape above has its own play button, and each one plays the notes that shape actually produces — not a generic triad.
F#aug on other instruments
Same notes, different hands. Every link below is a real page with diagrams and audio.
Chords next door
Same root, different colour — and all of them playable on bass.
F#aug on Bass — questions people ask
What is the easiest way to play F#aug on bass?
“Root-3-#5 Shape (2nd fret)” — which we rate advanced — is the easiest F#aug shape on bass. Fingered low on the neck with no barre — a useful middle step between the open shape and the movable ones. There is no open F#aug on bass, so a barre is unavoidable; this is the least demanding one.
What notes are in the F# Augmented chord?
F# Augmented is F#, A#, D — the 1-3-#5 interval pattern of a augmented chord. Every voicing on this page uses those notes and nothing else; they just appear in a different order and octave.
What can I play instead of F#aug?
The nearest stand-ins on bass that keep the same root are F#5, F#sus4, F#sus2. They keep the root and the fifth and only change what sits in the middle, so most songs still work — but check the swap against the melody, because the note you removed may be the one the tune is singing.
Can I play F#aug on other instruments?
Yes. F#aug is the same set of notes everywhere; only the fingering changes. This site has diagrams and audio for it on guitar, piano, ukulele, mandolin, banjo.
Learn the theory behind F#aug
The shape gets your fingers there. These explain why it sounds the way it does.
Borrowed Chords and Modal Mixture — Stealing from Parallel Keys
The raised fifth comes from outside the key. This is where chords like it are borrowed from.
7 min read
Functional Harmony: Three Roles, One Engine
That sharpened fifth is a pull toward the next chord — here is the mechanism.
6 min read
Intervals — The Only Music Theory You Actually Need
Two stacked major thirds, and the symmetry that makes it feel homeless.
5 min read