Finger Positions

Root Note F#

Name F# diminished

Intervals 1P-3m-5d

Relative Minor D#m

Notes F#, A, C

Aliases F#dim, F#°, F#o

How to play the F#dim Chord

The F#dim is a fundamental diminished chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the F# diminished is built using the 1P, 3m, 5d intervals. In the key of F# Major, this chord functions as the I chord.

Common Progressions

In music composition, the F#dim chord is often used to create tension or resolution.

I-V-vi-IV

F# → C# → D#m → B

vi-IV-I-V

D#m → B → F# → C#

The Diatonic Family

Understanding the "family" of chords that belong to F# helps with transposition and ear training.

Triads

F# G#m A#m B C# D#m Fdim

7ths

F#maj7 G#m7 A#m7 Bmaj7 C#7 D#m7 Fm7b5

Scale Compatibility

View All Scales

Minor Blues Diminished Locrian Locrian Pentatonic Super Locrian Pentatonic Altered Locrian #2 Ultralocrian Locrian 6 Dorian #4 Lydian Diminished Hungarian Minor Hungarian Major Flamenco Todi Raga

* 15 scales found containing the notes F#, A, C.

Acoustic & Digital Analysis

Digital footprint of the F#dim chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 69, 60

Frequencies (Hz)

369.9944227116344, 440, 261.6255653005986