F♯dim Chord on Guitar

Notes F♯ A C. Start with the open-A shape (x 0 4 2 1 2): open A string, pinky on string 4 fret 4, middle on string 3 fret 2, index on string 2 fret 1, ring on string 1 fret 2.

Chord · F♯dim diminished

F♯dim chord, F♯dim with the open A string×A4F♯2A1C3F♯

F♯dim with the open A string · x 0 4 2 1 2
open strings

1 F♯♭3 A♭5 C

Voicing · 4 shapes, easiest first
Fingers, low to high
  • String 6 (low E): muted, do not play
  • String 5 (A): open
  • String 4 (D): pinky (4), fret 4
  • String 3 (G): middle (2), fret 2
  • String 2 (B): index (1), fret 1
  • String 1 (high e): ring (3), fret 2

Notes and formula

DegreeNoteInterval from F♯
1F♯root
♭3Aminor 3rd
♭5Cdiminished 5th

Formula 1 ♭3 ♭5 (diminished). Same chord as G♭dim: same pitches, same shapes.

Also written F#dim, F#°, F sharp diminished, G♭dim, G flat diminished.

More on this chord type: Diminished chords

Easier stand-in

D7

D7 shape××213

F♯dim is D7 without its root. D7 is easier to grip and has the same pull toward G.

Keys that contain F♯dim

KeyF♯dim is the
E minor ii°
G major vii°

Minor keys here use the natural minor scale.

Playing F♯dim: what goes wrong

Where F♯dim sits

F♯dim (F♯, A, C) is the vii° chord of G major and the ii° of E minor. In G major the F♯ is the leading tone and pulls up to G, so F♯dim most often leads to G.

The root-position version

The open A string is the 3rd, so the lowest note is not the root. For a root-position sound play x x 4 2 1 2: the same fingers with the open A string left out.

A D7 without the root

F♯, A and C are the 3rd, 5th and ♭7 of D7. Before G, F♯dim can take the place of D7 (x x 0 2 1 2) and leads to G in the same way.

Related chords

Learn and practise F♯dim

FAQ

What notes are in F♯dim?

F♯, A, C: the 1, ♭3, ♭5 of the F♯dim diminished chord. G♭dim is the same chord spelt with a flat.

What is the difference between F♯dim and F♯m?

F♯dim lowers the 5th: F♯, A, C. F♯m is F♯, A, C♯. One note, a semitone apart, changes the chord from tense to calm.

All chords: the full chord directory