F♯ Augmented Chord

F#aug Level 5: The Abyss

F♯ Augmented (F#aug) is built from the notes F#, A#, D. Its intervals are Root — Major 3rd — Augmented 5th. Dreamlike, floating, and unresolved. The augmented triad sounds like it's suspended in mid-air — neither tense nor relaxed, just hovering.

Hear F♯ Augmented Chord

Piano sample · tap to play

Notes and intervals

Interval Semitones Note
Root 0 F#
Major 3rd 4 A#
Augmented 5th 8 D

What does f♯ augmented chord sound like?

Dreamlike, floating, and unresolved. The augmented triad sounds like it's suspended in mid-air — neither tense nor relaxed, just hovering.

F♯ Augmented Chord in music

An expansive chord (F#-A#-D) with a wide, floating quality. Its enharmonic, Gb augmented, is the same sound with different spelling.

How to recognise f♯ augmented chord by ear

Augmented sounds "stretched." Both intervals are major thirds, creating a wide, evenly-spaced structure. If a chord feels dreamy and weightless — like the ground has disappeared — that's augmented.

Practice identifying this chord in ChordFrog's Level 5: The Abyss .

Practice tip

F# augmented (F#-A#-D) contains both sharp and natural notes, creating a complex colour. Play it after F# major — the raised fifth (C# to D) creates a subtle but distinct shift. Because D is a common natural note, F# augmented feels like it's reaching toward simpler key areas.

Frequently asked questions

What notes are in a F♯ Augmented chord?
F♯ Augmented (F#aug) contains three notes: F#, A#, D. The intervals are Root, Major 3rd, Augmented 5th.
How do I recognise F♯ Augmented by ear?
Augmented sounds "stretched." Both intervals are major thirds, creating a wide, evenly-spaced structure. If a chord feels dreamy and weightless — like the ground has disappeared — that's augmented. Practice identifying F♯ Augmented in ChordFrog's Level 5 (The Abyss).
What level is F♯ Augmented in ChordFrog?
F♯ Augmented is introduced at Level 5: The Abyss. This is the final level, adding diminished and augmented triads for the complete chord vocabulary.

Other F# chords

F♯ Major Chord F♯ Minor Chord F♯ Diminished Chord F♯ Sus2 Chord F♯ Sus4 Chord

All Augmented Chords chords

C Augmented Chord D♭ Augmented Chord D Augmented Chord E♭ Augmented Chord E Augmented Chord F Augmented Chord G Augmented Chord A♭ Augmented Chord A Augmented Chord B♭ Augmented Chord B Augmented Chord

Hear f♯ augmented chord for yourself

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