D♭ Augmented Triad

Chord Tones: D♭ Augmented Triad

Symbol: aug, + — Formula: 1-3-♯5

Chord Notation

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

Harmonic Function

The D♭ augmented chord commonly functions as the supertonic (♭II, Neapolitan) in C major or tonic in D♭ major. Its harmonic role varies by key — in major keys it provides stable harmonic grounding.

The augmented triad consists of two stacked major thirds, creating a symmetrical, ambiguous chord. Its raised fifth gives it a tense, unresolved quality that pulls toward resolution. The D♭ Augmented Triad specifically contains 3 notes: D♭, F, A (formula: 1-3-♯5). On piano, Db-rooted chords place the root on a black key surrounded by other black keys, and the hand naturally cups over the raised surface for smooth voice leading. Romantic piano repertoire, contemporary R&B, and cinematic underscore frequently feature Db chords for their lush, introspective warmth.

Common Progressions

The D♭ Augmented Triad frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

• Iaug-IV
• Vaug-I

Songs Featuring the Augmented Triad

Well-known songs where the D♭ Augmented Triad — or this chord type — plays a prominent role:

• Oh! You Pretty Things – David Bowie
• All Blues – Miles Davis
• Michelle – The Beatles

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Scales Containing the D♭ Augmented Triad

These scales include the D♭ Augmented Triad as a diatonic or characteristic chord: