F♯dim7, diminished seventh chord
F♯, A, C and E♭
- Root
- F♯
- Minor third
- A
- Diminished fifth
- C
- Diminished seventh
- E♭
Formula
1 ♭3 ♭5 𝄫7 (3, 6, 9 half steps above F♯)
Fingering in root position
| Notes | F♯ | A | C | E♭ |
|---|---|---|---|---|
| Right hand | 1 | 2 | 3 | 5 |
| Left hand | 5 | 3 | 2 | 1 |
F♯ diminished 7 inversions
F♯ diminished 7 has 3 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.
F♯dim7
Root position
| Notes | F♯ | A | C | E♭ |
|---|---|---|---|---|
| Right hand | 1 | 2 | 3 | 5 |
| Left hand | 5 | 3 | 2 | 1 |
F♯dim7/A
First inversion
| Notes | A | C | E♭ | F♯ |
|---|---|---|---|---|
| Right hand | 1 | 2 | 3 | 5 |
| Left hand | 5 | 3 | 2 | 1 |
F♯dim7/C
Second inversion
| Notes | C | E♭ | F♯ | A |
|---|---|---|---|---|
| Right hand | 1 | 2 | 3 | 5 |
| Left hand | 5 | 3 | 2 | 1 |
F♯dim7/E♭
Third inversion
| Notes | E♭ | F♯ | A | C |
|---|---|---|---|---|
| Right hand | 1 | 2 | 3 | 5 |
| Left hand | 5 | 3 | 2 | 1 |
Keys with F♯ diminished 7
Roman numerals give a chord's place in a key: capitals for major chords, small letters for minor, ° for diminished. F♯ diminished 7 appears as:
- vii°7 in G minor
How F♯ diminished 7 is built
F♯ is the root, A the minor third, C the diminished fifth and E♭ the diminished seventh.
A diminished seventh chord stacks three minor thirds, so every note is 3 half steps from the next. That symmetry means F♯ diminished 7 uses the same four keys as A diminished 7, C diminished 7 and D♯ diminished 7.
Every chord takes every other letter of the alphabet, so the letters of F♯ diminished 7 are F, A, C, E. That is why it is spelled F♯, A, C and E♭.
Find F♯ diminished 7 yourself
Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.
Step 1 of 4
Tap the notes of F♯ diminished 7, in any octave and any order.
Practice F♯ diminished 7 in real music
MasterPiano gives you new music to read at your level and listens as you play, through a MIDI keyboard or your device's microphone, marking each note right or wrong.
Start freeQuestions
What notes are in the F♯ diminished 7 chord?
F♯ diminished 7 (F♯dim7) has four notes: F♯, A, C and E♭. F♯ is the root, A the minor third, C the diminished fifth and E♭ the diminished seventh.
What fingers do you use for F♯ diminished 7 on piano?
In root position, play F♯, A, C and E♭ with right hand fingers 1, 2, 3 and 5 (thumb, index finger, middle finger and little finger) and left hand fingers 5, 3, 2 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.
What are the inversions of F♯ diminished 7?
F♯ diminished 7 has 3 inversions, one for each note other than the root at the bottom. First inversion (F♯dim7/A): A, C, E♭ and F♯. Second inversion (F♯dim7/C): C, E♭, F♯ and A. Third inversion (F♯dim7/E♭): E♭, F♯, A and C.
What key is F♯ diminished 7 in?
F♯ diminished 7 appears as vii°7 in G minor.