F#dim Guitar Chord (F Sharp Diminished)

The F#dim guitar chord (F sharp diminished, also written G♭dim) has 3 notes: F♯, A and C. Below you'll find 5 shapes with diagrams, how to play it step by step, the keys it belongs to and common progressions that use it.

F♯dim guitar chord: 20x21x231EADGBE
20x21x · open position
Notes
F♯ – A – C
Formula
1 – ♭3 – ♭5
Type
diminished
Also written
G♭dim
Difficulty
easy

Transpose a song

All 5 ways to play F#dim on guitar

  • F♯dim guitar chord: 20x21x231
    20x21x open position
  • F♯dim guitar chord: 20421x2431
    20421x open position
  • F♯dim guitar chord: xx45x54fr123
    xx45x5 at the 4th fret
  • F♯dim guitar chord: x97x787fr4123
    x97x78 at the 7th fret
  • F♯dim guitar chord: x-9-10-11-10-x9fr1243
    x-9-10-11-10-x at the 9th fret

Diagrams: strings run from the lowest on the left; X = don't play, O = open string, numbers = fingers (1 index, 2 middle, 3 ring, 4 little finger).

How to play F#dim on guitar

Main shape: 20x21x (open position).

  1. Put your middle finger (2) on the 2nd fret of the low E (6th) string.
  2. Put your ring finger (3) on the 2nd fret of the G (3rd) string.
  3. Put your index finger (1) on the 1st fret of the B (2nd) string.
  4. Let the A (5th) string ring open (marked O).
  5. Don't play the D (4th) or high E (1st) strings (marked X).
  6. Strum from the low E (6th) string down (4 strings).

F#dim notes and intervals

NoteFormulaInterval from the root
F♯ 1 root
A ♭3 minor 3rd
C ♭5 diminished 5th

Inversions: the same notes with another one in the bass, written as slash chords: F♯dim/A (1st inversion) and F♯dim/C (2nd inversion).

F#dim on piano and ukulele

  • F♯dim piano chord: F♯ A CACF♯
    F♯dim on piano F♯ – A – C
  • F♯dim ukulele chord: 202023
    F♯dim on ukulele 2020

Which keys use F#dim?

F♯dim is one of the basic chords of 2 keys. Its number (Roman numeral) and job change with the key:

KeyWrittenNumeralFunction
G major F♯° vii° dominant
E minor F♯° ii° predominant
G minor F♯° vii° dominant (harmonic minor)

Transpose F#dim

Move the chord up or down by semitones to see its name and notes in another key.

F♯dim F♯ A C original

Diminished chords on every root: C♯dim Ddim E♭dim Edim Fdim F♯dim Gdim A♭dim Adim B♭dim Bdim Cdim

Frequently asked questions

What notes are in the F#dim chord?

F♯dim has 3 notes: F♯, A and C. Its formula is 1 – ♭3 – ♭5: F♯ is the root, A a minor 3rd and C a diminished 5th above it.

Is F#dim the same as Gbdim?

Yes. F♯ and G♭ are two names for the same note (the same piano key and the same fret), so F♯dim and G♭dim sound the same and use the same shapes. The name follows the key: F♯° in G major and E minor.

What key is F#dim in?

F♯dim is vii° in G major and ii° in E minor. It is also vii° in G minor (harmonic minor, with the raised 7th). The other chords of G major are G, Am, Bm, C, D and Em.

How do you play F#dim on guitar?

The shape in the main diagram is 20x21x (open position).

  1. Put your middle finger (2) on the 2nd fret of the low E (6th) string.
  2. Put your ring finger (3) on the 2nd fret of the G (3rd) string.
  3. Put your index finger (1) on the 1st fret of the B (2nd) string.
  4. Let the A (5th) string ring open (marked O).
  5. Don't play the D (4th) or high E (1st) strings (marked X).
  6. Strum from the low E (6th) string down (4 strings).
What is a diminished chord?

A diminished chord has a root, a minor 3rd and a diminished 5th (1–♭3–♭5). It is written dim or °. In a major key, the chord on the 7th note (vii°) is diminished.

How many ways can you play F#dim on guitar?

This page shows 5 shapes: 20x21x (open position), 20421x (open position), xx45x5 (at the 4th fret), x97x78 (at the 7th fret) and x-9-10-11-10-x (at the 9th fret). All of them contain the chord's essential notes.

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