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D 9♯11

chord·/chords/dominant-9th-sharp-11th/d/

The D 9♯11 chord contains the notes D, E, F♯, G♯, A, and C.

Notes: D, E, F♯, G♯, A, C · Piano keys: D E F♯ G♯ A C

Reviewed for accuracy · Last updated July 2026 · Maintained by Justin Evans

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D
D – E – F♯ – G♯ – A – C

Practice D 9♯11

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Introduction

The D 9♯11 chord is a six-note chord made up of D, E, F♯, G♯, A, and C.

Notes

Notes:D – E – F♯ – G♯ – A – C

Key Signature

A chord has no key signature of its own, but the D 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:

C1C2C3C4DAC5C6C7C8F#
I — D Major (major)
DegreeNumeralChordQuality
1ID MajorMajor
2iiE MinorMinor
3iiiF♯ MinorMinor
4IVG MajorMajor
5VA MajorMajor
6viB MinorMinor
7vii°C♯ DiminishedDiminished

D 9♯11 — Frequently Asked Questions

What is the D 9♯11 chord on piano?
The D 9♯11 chord contains the notes D – E – F♯ – G♯ – A – C. On piano, play these notes together to sound the chord.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.

References & Further Reading

The note names, intervals, fingering, and harmony on this chord page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data reflects piano.org's own interval-derived dataset.

  1. 1

    George Grove (ed.)(1900)

    A Dictionary of Music and Musicians

    Public domain treatise
  2. 2

    Jadassohn, Salomon(1883)

    A Manual of Harmony

    Public domain treatise
  3. 3

    Chopin, Frédéric(1839)

    Prelude in D major, Op. 28 No. 5

    Public domain score
  4. 4

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