The D♯ 7♯5 chord is a four-note chord made up of D♯, F♯♯, A♯♯, and C♯. It is built from a root, major third, augmented fifth, and minor seventh.
Construction
D♯ 7♯5 = Root + Major 3rd + Minor 6th + Minor 7th = D♯ · F♯♯ · A♯♯ · C♯
| Note | Interval | Degree |
|---|---|---|
| D♯ | Root | 1 |
| F♯♯ | Major 3rd | 3 |
| A♯♯ | Minor 6th | ♯5 |
| C♯ | Minor 7th | ♭7 |
D♯ 7♯5 Inversions
| Position | Notes |
|---|---|
| Root Position | D♯ – F♯♯ – A♯♯ – C♯ |
| 1st Inversion | F♯♯ – A♯♯ – C♯ – D♯ |
| 2nd Inversion | A♯♯ – C♯ – D♯ – F♯♯ |
| 3rd Inversion | C♯ – D♯ – F♯♯ – A♯♯ |
Key Signature
A chord has no key signature of its own, but the D♯ 7♯5 is the tonic (I) chord of D# Major, whose key signature has 3 flats (B♭, E♭, A♭).
B♭E♭A♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of D♯ Major
These are the triads built on each degree of the D♯ major scale:
Same Notes, Other Names
The notes D♯ – F♯♯ – A♯♯ – C♯ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
D♯ 7♯5 — Frequently Asked Questions
What is the D♯ 7♯5 chord on piano?
The D♯ 7♯5 chord contains the notes D♯ – F♯♯ – A♯♯ – C♯. On piano, play these notes together to sound the chord.
What notes are in the D# 7♯5 chord?
The D# 7♯5 chord (D#7♯5) contains 4 notes: D#, G, B, C#. Formula: R-M3-A5-m7.
How is D#7♯5 used in music?
D#7♯5 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for D#7♯5?
D#7♯5 uses scale degrees 1-3-#5-b7, giving it its distinctive sound.