F# Diminished Chord

Symbol: F#dim

Diagrams

Staff Notation

Staff Notation

Piano Keyboard

F#dim chord – keys F#, A, C highlightedPiano keyboard with keys F#, A, C highlighted. F# is the root note.CAF#
F#dim chord – keys F#, A, C highlightedPiano keyboard with keys F#, A, C highlighted. F# is the root note.CAF#

Guitar

Guitar chord diagram for F#dim (9fr)Guitar chord voicing with notes F#, C, F#, A.F#dim (9fr)9234

Intervals

NoteIntervalSemitones
F#P10
Am33
Cd56

About the F# Diminished Chord

The F# Diminished chord is built from the notes F#, A, C. These notes are derived by stacking intervals above the root note F#, following the interval pattern that defines every Diminished chord. Understanding how a chord is constructed from intervals is one of the most valuable skills in music theory, because it allows you to build the chord in any key and recognize it in any context.

You can use this chord in a variety of musical contexts. Try exploring the scales that contain these notes to discover which keys this chord naturally belongs to. Each scale listed above shares all the notes of this chord, making it a diatonic chord within that key. Understanding these relationships helps with songwriting, improvisation, and arranging.

Try F#dim in the Chord Identifier →