The D Major 9♯11 chord is a six-note chord made up of D, E, F♯, G♯, A, and C♯.
Construction
D Major 9♯11 = Root + Major 2nd + Major 3rd + Diminished 5th + Perfect 5th + Major 7th = D · E · F♯ · G♯ · A · C♯
| Note | Interval | Degree |
|---|---|---|
| D | Root | 1 |
| E | Major 2nd | 9 |
| F♯ | Major 3rd | 3 |
| G♯ | Diminished 5th | ♭5 |
| A | Perfect 5th | 5 |
| C♯ | Major 7th | 7 |
Key Signature
A chord has no key signature of its own, but the D Major 9♯11 is the tonic (I) chord of D Major, whose key signature has 2 sharps (F♯, C♯).
F♯C♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of D Major
These are the triads built on each degree of the D major scale:
D Major 9♯11 — Frequently Asked Questions
What is the D Major 9♯11 chord on piano?
The D Major 9♯11 chord contains the notes D – E – F♯ – G♯ – A – C♯. On piano, play these notes together to sound the chord.