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A piano reference: chords, scales, theory. Full MIDI.

G♯ 9♯11

Notes: G♯ – B♯ – D♯ – F♯ – A♯ – C♯♯
Degrees: 1 – 3 – 5 – ♭7 – 9 – ♯11Also written: G♯9♯11Lower A♯ to A and it is G♯7♭9♯11; raise A♯ to A♯♯ and it is G♯7♯9♯11. G♯, B♯, C♯♯, D♯ and F♯ do not move.
A♭ 9♯11
This is the same chord as A♭ 9♯11: the same keys on the keyboard, spelled with flats.

Construction

G♯ 9♯11 = Root + Major 3rd + Perfect 5th + Minor 7th + Major 2nd + Diminished 5th = G♯, B♯, D♯, F♯, A♯, C♯♯
NoteIntervalDegree
G♯Root1
B♯Major 3rd3
D♯Perfect 5th5
F♯Minor 7th♭7
A♯Major 2nd9
C♯♯Diminished 5th♭5

G♯ 9♯11 : Frequently Asked Questions

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

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