F♯maj9♯11: F♯/G♭ Major 9th Sharp 11th Piano Chord

Construction

F♯ Major 9♯11 = Root + Major 3rd + Diminished 5th + Perfect 5th + Major 7th + Major 2nd = F♯, A♯, B♯, C♯, E♯, G♯

Note	Interval	Degree
F♯	Root	1
A♯	Major 3rd	3
B♯	Diminished 5th	♭5
C♯	Perfect 5th	5
E♯	Major 7th	7
G♯	Major 2nd	9

Key Signature

A chord has no key signature of its own, but the F♯ Major 9♯11 is the tonic (I) chord of F♯ Major, whose key signature has 6 sharps (F♯, C♯, G♯, D♯, A♯, E♯).

F♯C♯G♯D♯A♯E♯

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 F♯ Major

These are the triads built on each degree of F♯ Major:

I — F♯ Major (major)

Degree	Numeral	Chord	Quality
1	I	F♯ Major	Major
2	ii	G♯ Minor	Minor
3	iii	A♯ Minor	Minor
4	IV	B Major	Major
5	V	C♯ Major	Major
6	vi	D♯ Minor	Minor
7	vii°	E♯ Diminished	Diminished

F♯ Major 9♯11 : Frequently Asked Questions

What is the F♯ Major 9♯11 chord on piano?

The F♯ Major 9♯11 chord contains the notes F♯ – A♯ – C♯ – E♯ – G♯ – B♯. On piano, play these notes together to sound the chord.

What is the F# piano chord?

The F# piano chord (written F♯ Major 9♯11) uses the same keys: F♯ – A♯ – C♯ – E♯ – G♯ – B♯. The # and ♯ symbols name the same black key.