Piano chord
F Diminished Chord
Fdim is a diminished chord built on F. It contains the notes F – A♭ – C♭.
Fdim
Also written: F°, Fm♭5
- F
- A♭
- C♭
Notes in Fdim
Count up from F using the intervals below. The formula shows each note relative to the F major scale.
| Notes | Intervals | Formula | Semitones |
|---|---|---|---|
| F | Root | 1 | 0 |
| A♭ | Minor 3rd | ♭3 | 3 |
| C♭ | Diminished 5th | ♭5 | 6 |
How to play Fdim on piano
- Right hand: fingers 1–3–5 (thumb on F).
- Left hand: fingers 5–3–1 (little finger on the lowest note).
- Press the keys together, then try playing them one at a time as an arpeggio.
Fdim inversions
An inversion puts a different note of Fdim at the bottom. The notes stay the same, the colour and voice leading change.
Root position
FdimF – A♭ – C♭
1st inversion
Fdim/A♭A♭ – C♭ – F
2nd inversion
Fdim/C♭C♭ – F – A♭
About diminished chords
Stack two minor 3rds and you get pure tension. Diminished chords are the sound of suspense, dread, and impending drama.
Sound: Dark & suspenseful
Songs that use it
- Chim Chim Cher-ee · Mary PoppinsMusical
- Super Mario Bros. Theme · Koji KondoGame Music
- Psycho Theme · Bernard HerrmannFilm Score
Keys that contain Fdim
Fdim is built only from notes of these keys. The Roman numeral shows its role in each key.
Hear Fdim with different sounds and compare it with other chords in the interactive builder.
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