The D♭ aug7 Chord Explained
D-flat augmented seventh is an Augmented chord built from the notes D♭, F, A, and C♭. Its root is D♭, and its interval number formula is 1–3–♯5–♭7. That means the chord contains a root, major third, augmented fifth, and minor seventh. You may also see it written as D♭+7, D♭7♯5, or plain-text D-flat seven sharp five. If you look at the widget above, you can use it to see and hear how these four notes combine, and learning more about chord intervals can make this structure easier to recognize.
D♭ aug7 Alternate Names
- D♭+7
- D♭7♯5
- D-flat seven sharp five
D♭ aug7 Chord Notes
D♭ aug7 Chord Formula
D♭ aug7 Chord Notation
How To Use D♭ aug7 In Music
Because of its raised fifth, this chord sounds bright, tense, and unstable, with a strong pull toward another harmony. The added minor seventh gives it a restless dominant-like color, so it often appears when a song wants extra drama before resolving. For example, in the key of G♭ major, D♭ aug7 can work as V+ moving to I, as in ii–V+–I. In another setting, it might appear in a bluesy or jazzy line such as I–IV–V+–I, where the surrounding chords can make it feel either more colorful or more urgent. If you want to compare that pull with a more typical dominant sound, see what is a dominant chord.
D♭ aug7 Chord Inversions
Inversions happen when a note other than the root is placed in the bass. For D-flat augmented seventh, root position is D♭–F–A–C♭, first inversion is F–A–C♭–D♭, second inversion is A–C♭–D♭–F, and third inversion is C♭–D♭–F–A. These inversions keep the same chord quality but change the weight and smoothness of the sound. A root-position shape can feel strongest and most direct, while inversions can sound softer, more flowing, or more suspenseful depending on which note is lowest. Musicians use inversions to create smoother bass lines, connect chords with less movement, and shape the mood of a progression without changing the basic harmony.
