Fretboard
Chord Identifier & Player

F♯dim chord

F♯ diminished. The notes are F♯, A and C. Also written G♭dim. Four ways to play it are below the neck.

F♯dimDiminished
F♯ · C · F♯ · AR ♭5 ♭3also
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Ways to play F♯dim

Lowest on the neck first. Tap a shape to put it on the fretboard above and hear it. The numbers are fingers (1 is your index), × means leave that string out, and ○ means let it ring open.

What's in F♯dim

A diminished triad stacks two minor 3rds: root, minor 3rd and flat 5th. F♯dim is F♯, A, C. The root and ♭5 are a tritone apart, the same interval that drives a dominant 7th.

NoteFormulaInterval from F♯
F♯1Root
A♭3Minor 3rd
C♭5Diminished 5th

Tight and unsettled, and it rarely stays put. It is the vii° chord of a major key, and as a passing chord it bridges two chords a whole step apart.

Keys that use F♯dim

Every major and minor key whose scale contains all of F♯, A and C, and the chord's Roman numeral in each. Minor keys marked harmonic get the chord from the raised 7th of the harmonic minor scale.

KeyF♯dim is the
E minorii°
G majorvii°
G minor (harmonic)vii°

Progressions to try

vii°–I in G major

  1. F♯dim
  2. G

A diminished triad wants to rise a half step to the chord above it.

I–♯i°–ii in F major

  1. F
  2. F♯dim
  3. Gm

As a passing chord, the bass climbs one half step at a time between two chords a whole step apart.

Other chords on F♯:

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