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G 9♯11

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

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

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

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

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G
G – A – B – C♯ – D – F

Practice G 9♯11

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Introduction

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

Notes

Notes:G – A – B – C♯ – D – F

Key Signature

A chord has no key signature of its own, but the G 9♯11 is the tonic (I) chord of G Major, whose key signature has 1 sharp (F♯).

F♯

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 G Major

These are the triads built on each degree of the G major scale:

C1C2C3C4GBC5DC6C7C8
I — G Major (major)
DegreeNumeralChordQuality
1IG MajorMajor
2iiA MinorMinor
3iiiB MinorMinor
4IVC MajorMajor
5VD MajorMajor
6viE MinorMinor
7vii°F♯ DiminishedDiminished

G 9♯11 — Frequently Asked Questions

What is the G 9♯11 chord on piano?
The G 9♯11 chord contains the notes G – A – B – C♯ – D – F. 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

    Riemann, Hugo(1896)

    Harmony Simplified (English translation)

    Public domain treatise
  2. 2

    George Grove (ed.)(1900)

    A Dictionary of Music and Musicians

    Public domain treatise
  3. 3

    Jadassohn, Salomon(1883)

    A Manual of Harmony

    Public domain treatise
  4. 4

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