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D Flat Augmented Chord

The D flat augmented chord contains D♭, F and A. Written D♭aug or D♭+, it has formula 1–3–♯5. Locate A natural, then compare root position with two inversions.

D♭ Augmented keyboard and inversions

D♭ Augmented
D♭aug
Chord tones
D♭FA
Formula
13♯5
Notes
D♭ · F · A
Quality
Augmented triad
Formula
1 · 3 · ♯5
Keyboard range
C3–C6
Position
Notes from low to high
D♭4F4A4
D♭aug
Bass: D♭4
Download D♭aug PDF
Simple reference tone; not a recording of an acoustic piano.

Build the D flat augmented chord by raising A♭, the fifth of D♭ major, to A natural. Keep D♭ as the root and F as the major third. The root-to-fifth span increases from seven to eight semitones; no seventh is added to this three-note collection.

Preserve the written note spelling shown for this chord.

Choose a position to keep the written notes, sounding keys, bass note, playback and print reference synchronized.

Choose D♭, F and A in the exercise. Selecting A♭ instead restores D♭ major. The reference contains one black-key pitch class and two white-key pitch classes; click order and octave do not affect this note-set check.

How Dbaug Is Built

D♭aug uses 1–3–♯5: D♭–F–A.

Compare D♭ Augmented

Compared with D♭ major, raise the fifth by one semitone.

Dbaug Inversions

The chord tones stay the same while the lowest chord tone changes.

D♭ Augmented: root position, first inversion, and second inversion
PositionSymbolNotes, low to highBass
Root position, current selectionD♭augD♭4–F4–A4D♭4
First inversionD♭aug/FF4–A4–D♭5F4
Second inversionD♭aug/AA4–D♭5–F5A4
Reference scope

Fingering is not provided for this reference

The D flat augmented chord diagrams show pitches and octave labels without prescribed fingers. F begins the first inversion and A the second. Read A as natural in each position; its key differs from the A♭ used by the major triad.

Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.

Read left- and right-hand finger numbers
Sources and scope

Triads — Open Music Theory

Open Music Theory

Supports: augmented triad formula and written tone spelling

Scope: Supports the chord formula and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.

Dbaug FAQ

What notes are in the D flat augmented chord?

D♭, F and A: root, major third and augmented fifth. The compact symbols D♭aug and D♭+ identify this triad.

Why is the fifth A natural?

The D flat augmented chord raises the perfect fifth A♭ by a semitone. A natural preserves the letter needed for a fifth above D♭ while giving the required augmented interval.

Does the plus sign include a seventh?

No. The plus sign marks the raised fifth of this triad. A seventh-chord symbol would require an additional note; this page supplies a three-note reference.

Which notes start the inversions?

F starts the first inversion and A the second. Root position starts on D♭. The three sounding pitch classes remain the same while their low-to-high order changes.

Interactive practice

Build D♭aug on the keyboard

Select the three pitch classes that make D♭aug, then check your answer.

This one-octave exercise checks pitch classes. Order and octave do not affect the result; fingering and live performance are not assessed.

3Choose three pitch classes

One octave, C through B. Select a key again to remove it.

One-octave keyboard from C through B
Selected: none
Choose notes, then check your answer.

Print this chord reference

Download D♭aug PDF