Construction
D♯ Major 7♭5 = Root + Major 3rd + Diminished 5th + Major 7th = D♯, F♯♯, A, C♯♯
| Note | Interval | Degree |
|---|---|---|
| D♯ | Root | 1 |
| F♯♯ | Major 3rd | 3 |
| A | Diminished 5th | ♭5 |
| C♯♯ | Major 7th | 7 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| D♯ | black | index finger (2) | little finger (5) |
| F♯♯ | white | middle finger (3) | ring finger (4) |
| A | white | ring finger (4) | middle finger (3) |
| C♯♯ | white | little finger (5) | index finger (2) |
Right hand: index finger (2) on D♯, middle finger (3) on F♯♯, ring finger (4) on A, little finger (5) on C♯♯.
Left hand: little finger (5) on D♯, ring finger (4) on F♯♯, middle finger (3) on A, index finger (2) on C♯♯.
Key Signature
A chord has no key signature of its own, but the D♯ Major 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 D♯ Major:
D♯ Major 7♭5 : Frequently Asked Questions
What is the D♯ Major 7♭5 chord on piano?
The D♯ Major 7♭5 chord contains the notes D♯ – F♯♯ – A – C♯♯. On piano, play these notes together to sound the chord.
What is the D# piano chord?
The D# piano chord (written D♯ Major 7♭5) uses the same keys: D♯ – F♯♯ – A – C♯♯. The # and ♯ symbols name the same black key.