A Augmented Chord
A Augmented (Aaug) is built from the notes A, Db, F. 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 A Augmented Chord
Piano sample · tap to play
Notes and intervals
| Interval | Semitones | Note |
|---|---|---|
| Root | 0 | A |
| Major 3rd | 4 | Db |
| Augmented 5th | 8 | F |
What does a 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.
A Augmented Chord in music
A floating chord (A-C#-F) with an unusual, wide character. Used in chromatic progressions and as a dominant substitute in jazz.
How to recognise a 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
A augmented (A-C#-F) has a wide, unusual quality because the augmented fifth (F) feels very distant from the root (A). Compare it to A major — the raised fifth (E to F) is a subtle change that completely destabilises the chord. Practise hearing this "widening" effect.
Frequently asked questions
- What notes are in a A Augmented chord?
- A Augmented (Aaug) contains three notes: A, Db, F. The intervals are Root, Major 3rd, Augmented 5th.
- How do I recognise A 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 A Augmented in ChordFrog's Level 5 (The Abyss).
- What level is A Augmented in ChordFrog?
- A Augmented is introduced at Level 5: The Abyss. This is the final level, adding diminished and augmented triads for the complete chord vocabulary.
Other A chords
All Augmented Chords chords
Hear a augmented chord for yourself
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