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F#dim chord

F# diminished · also written Gbdim

C4
F#
A
C

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

Notes

  • F#
    R
  • A
    b3
  • C
    b5

Formula: R – b3 – b5

F#dim inversions

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

Root position F#dim

C4
F#
A
C

1st inversion F#dim/A

C4
A
C
F#

2nd inversion F#dim/C

C
F#
A
C6

FAQ

What notes are in the F#dim chord?

The F# diminished chord (F#dim) has 3 notes: F#, A and C.

How do you play F#dim on the piano?

Put your right hand on F#, A and C, 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 diminished chord?

R – b3 – b5 (in semitones from the root: 0, 3, 6).

Is F#dim the same as Gbdim?

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