The F♯ Major 9th chord is a five-note chord made up of F♯, A♯, C♯, E♯, and G♯. It is built from a root, major third, perfect fifth, major seventh, and major ninth.
Construction
F♯ Major 9th = Root + Major 3rd + Perfect 5th + Major 7th + Major 2nd = F♯ · A♯ · C♯ · E♯ · G♯
| Note | Interval | Degree |
|---|---|---|
| F♯ | Root | 1 |
| A♯ | Major 3rd | 3 |
| 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 9th 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 the F♯ major scale:
F♯ Major 9th — Frequently Asked Questions
What is the F♯ Major 9th chord on piano?
The F♯ Major 9th chord contains the notes F♯ – A♯ – C♯ – E♯ – G♯. On piano, play these notes together to sound the chord.
What notes are in the F# Major 9th chord?
F# Major 9th is built from the F# root. Check the interactive keyboard above for exact notes and fingering.
How is the F# Major 9th chord used in music?
F# Major 9th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Major 9th).
What is the fingering for F# Major 9th?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of F# Major 9th?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.