Construction
D Diminished Major 7th = Root + Minor 3rd + Diminished 5th + Major 7th = D, F, A♭, C♯
| Note | Interval | Degree |
|---|---|---|
| D | Root | 1 |
| F | Minor 3rd | ♭3 |
| A♭ | Diminished 5th | ♭5 |
| C♯ | Major 7th | 7 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| D | white | thumb (1) | little finger (5) |
| F | white | index finger (2) | middle finger (3) |
| A♭ | black | middle finger (3) | index finger (2) |
| C♯ | black | little finger (5) | thumb (1) |
Right hand: thumb (1) on D, index finger (2) on F, middle finger (3) on A♭, little finger (5) on C♯.
Left hand: little finger (5) on D, middle finger (3) on F, index finger (2) on A♭, thumb (1) on C♯.
Key Signature
A Diminished Major 7th chord is built from symmetrical or ambiguous intervals, so it doesn't belong to a single key and has no key signature of its own.
Chords in the Key of D Major
These are the triads built on each degree of D Major:
D Diminished Major 7th : Frequently Asked Questions
What is the D Diminished Major 7th chord on piano?
The D Diminished Major 7th chord contains the notes D – F – A♭ – C♯. On piano, play these notes together to sound the chord.