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F#9 chord

F# dominant 9th · also written Gb9

C4
F#
A#
C5
C#
E
G#

Want it in context? Open F#9 on the full piano.

Notes

  • F#
    R
  • A#
    3
  • C#
    5
  • E
    b7
  • G#
    9

Formula: R – 3 – 5 – b7 – 9

F#9 inversions

The same notes, with a different note in the bass.

Root position F#9

C4
F#
A#
C5
C#
E

1st inversion F#9/A#

C4
A#
C5
C#
E
F#

2nd inversion F#9/C#

C5
C#
E
F#
A#
C6

3rd inversion F#9/E

C5
E
F#
A#
C6
C#

FAQ

What notes are in the F#9 chord?

The F# dominant 9th chord (F#9) has 5 notes: F#, A#, C#, E and G#.

How do you play F#9 on the piano?

Put your right hand on F#, A#, C#, E and G#, starting from F#. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).

What is the formula of a dominant 9th chord?

R – 3 – 5 – b7 – 9 (in semitones from the root: 0, 4, 7, 10, 14).

Is F#9 the same as Gb9?

Yes. F# and Gb are the same key on the piano (enharmonic), so F#9 and Gb9 sound the same.