The D augmented 7th chord contains the notes D, F♯, A♯, and C.
Understanding the D Augmented 7th Chord
The D augmented 7th chord, commonly abbreviated as Daug7 or D+7, is a four-note chord. It is formed by taking a D augmented triad and adding a minor seventh above the root.
The notes that constitute the D augmented 7th chord are:
- D
- F♯
- A♯
- C
Here is a quick overview of the notes:
| Note |
|---|
| D |
| F♯ |
| A♯ |
| C |
Interval Structure of the D Augmented Triad
While the D augmented 7th chord includes four notes, the foundational D augmented triad (the first three notes) has specific intervals from the root. The intervals of the D augmented chord are:
- D (Root)
- F♯ (Major Third)
- A♯ (Augmented Fifth)
The addition of the note C to this triad forms the D augmented 7th chord.
Inversions of the D Augmented 7th Chord
Inversions change the bass note of a chord while keeping the same collection of pitches. This alters the chord's voicing and feel without changing its fundamental quality. The D augmented 7th chord has three primary inversions:
- First Inversion: F♯ A♯ C D (with F♯ in the bass)
- Second Inversion: A♯ C D F♯ (with A♯ in the bass)
- Third Inversion: C D F♯ A♯ (with C in the bass)
Understanding these inversions can enhance musical arrangements and compositions by providing harmonic variety.
