F♯dim7 chord on piano
F♯dim7 is F♯, A, C and E♭. F♯ is the first black key of the group of three. Tap Play, then slow it down.
root position · F♯–A–C–E♭ · right hand 1-2-3-5
- Notes
- F♯ · A · C · E♭
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
How to play F♯dim7 on piano
From F♯, go 3 half steps up to A, 3 half steps up to C then 3 half steps up to E♭. That's the whole chord: 4 keys.
- Right hand: 1 on F♯, 2 on A, 3 on C and 5 on E♭.
- Left hand: 5 on F♯, 3 on A, 2 on C and 1 on E♭.
- On the keyboard it's black, white, white and black keys, the same pattern as C♯dim7, so your hand shape carries over.
F♯dim7 inversions
- root position: F♯–A–C–E♭. RH 1-2-3-5.
- 1st inversion: A–C–E♭–F♯ (A in the bass). Right hand 1-2-3-5.
- 2nd inversion: C–E♭–F♯–A (C in the bass). Fingers 1-2-3-5.
- 3rd inversion: E♭–F♯–A–C, with E♭ at the bottom. RH 1-2-3-5.
Use the inversions to stay put: the next chord is often one inversion away from where your hand already is, as the changes below show.
F♯dim7 chord changes
The chords F♯dim7 usually goes to, and what changes under your fingers.
- G (leads up a half step): F♯dim7 to G: play G in root position (G–B–D), while F♯ moves up to G, C down to B and E♭ down to D. G on piano
- Gm (leads up a half step): F♯dim7 to Gm: play Gm in root position (G–B♭–D), while F♯ moves up to G, A up to B♭ and E♭ down to D. Gm on piano
- B (a fifth down): F♯dim7 to B: play B in 2nd inversion (F♯–B–D♯) and F♯ and D♯ stay under the same fingers, while C moves down to B. B on piano
F♯dim7 is a diminished seventh: three minor thirds stacked, so the chord divides the octave into four equal parts. F♯dim7 can stand in for a dominant seventh a half step below, which is why it links chords so smoothly. The one-by-one button above makes that quality easy to hear.
A short F♯dim7 drill
Roll the chord up and back down, F♯, A, C, E♭, C, A, F♯, before playing it as a block. Then climb the inversions: F♯–A–C–E♭, then A–C–E♭–F♯, then C–E♭–F♯–A, then E♭–F♯–A–C.
The keys of F♯dim7
F♯dim7 is a diminished seventh chord, 1–♭3–♭5–♭♭7 from F♯. Root position, from the bottom: how F♯dim7 is built.
| Note | Key | Fingers | Role |
|---|---|---|---|
| F♯ | black key | RH 1 · LH 5 | root |
| A | white key | RH 2 · LH 3 | minor third |
| C | white key | RH 3 · LH 2 | diminished fifth |
| E♭ | black key | RH 5 · LH 1 | diminished seventh |
You may also see it as G♭dim7; nothing changes on the piano.
F♯dim7 in context
F♯dim7 on guitar and ukulele
F♯dim7 on guitar and ukulele uses the same 4 notes in a different layout. See all three together.
Close to F♯dim7
Other diminished seventh chords
F♯dim7 on piano: questions
What notes are in F♯dim7 on piano?
F♯, A, C and E♭: F♯ (black key), A (white key), C (white key) and E♭ (black key). Right hand 1-2-3-5, left hand 5-3-2-1.
How do you play F♯dim7 on piano?
Press F♯, A, C and E♭ together (2 black, 2 white). Right hand: 1 on F♯, 2 on A, 3 on C and 5 on E♭.
What are the inversions of F♯dim7?
1st inversion (A–C–E♭–F♯), 2nd inversion (C–E♭–F♯–A) and 3rd inversion (E♭–F♯–A–C), after root position (F♯–A–C–E♭). Each keeps all the notes of the chord.
What does F♯dim7 look like on the keyboard?
black, white, white and black keys, the same pattern as C♯dim7, so one hand shape covers all of them.
Shapes and sound are generated from the notes F♯, A, C and E♭ and tested automatically. Updated September 2026.