D# Dominant 7th

Notes:D# – G – A# – C#
Formula:R-M3-P5-m7
Intervals:P1-M3-P5-m7
Scale Degrees:1-3-5-b7

Introduction

The D# Dominant 7th piano chord (D#7) consists of the notes D#, G, A#, C#. It is a major triad with an added minor 7th, giving it a bluesy, tense sound that strongly wants to resolve. Formula: R-M3-P5-m7 | Scale degrees: 1-3-5-b7.

Enharmonic equivalent: D♯ is enharmonically equivalent to E♭. See Eb Dominant 7th.

Notes

Notes:D# – G – A# – C#

D# Dominant 7th Inversions

PositionNotes
Root PositionD#4 – G4 – A#4 – C#5
1st InversionG4 – A#4 – C#5 – D#5
2nd InversionA#4 – C#5 – D#5 – G5
3rd InversionD#4 – G4 – A#4 – C#4

Key Signature

The key of D# Dominant 7th has Key signature data not available.

Theory: Intervals

Formula: R-M3-P5-m7
Intervals: P1-M3-P5-m7

The D# Dominant 7th is built by stacking intervals from the root note. The formula R-M3-P5-m7 describes the scale degrees used. The intervals P1-M3-P5-m7 show the distance between each note in the chord.

D# Dominant 7th — Frequently Asked Questions

What notes are in the D# Dominant 7th chord?

D# Dominant 7th is built from the D# root. Check the interactive keyboard above for exact notes and fingering.

How is the D# Dominant 7th chord used in music?

D# Dominant 7th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Dominant 7th).

What is the fingering for D# Dominant 7th?

See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.

What are the inversions of D# Dominant 7th?

Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.

Practice Tips

  • The tritone between 3rd and b7th creates tension that resolves.
  • Practice V7–I resolution.
  • Essential for blues.
  • Mixolydian is the matching scale.
  • Compare with D#maj7.
  • Blues, jazz, rock vocabulary.