D♯dim7 chord on piano
D♯dim7 is D♯, F♯, A and C. D♯ sits on the black key between D and E. Hit Play and watch each key light as it sounds.
root position · D♯–F♯–A–C · right hand 1-2-3-5
- Notes
- D♯ · F♯ · A · C
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
How to play D♯dim7 on piano
Count keys (black and white) from D♯: 3 half steps up to F♯, 3 half steps up to A then 3 half steps up to C. Press the 4 keys together and that's D♯dim7.
- Right hand: 1 on D♯, 2 on F♯, 3 on A and 5 on C.
- Left hand: 5 on D♯, 3 on F♯, 2 on A and 1 on C.
- On the keyboard it's black, black, white and white keys, the same pattern as A♯dim7, so your hand shape carries over.
D♯dim7 inversions
- root position: D♯–F♯–A–C. Fingers 1-2-3-5.
- 1st inversion: F♯–A–C–D♯, with F♯ at the bottom. RH 1-2-3-5.
- 2nd inversion: A–C–D♯–F♯, A lowest. RH 1-2-3-5.
- 3rd inversion: C–D♯–F♯–A (C in the bass). Right hand 1-2-3-5.
Inversions keep the same notes and change which one is lowest. Moving between chords, pick the inversion that keeps your hand closest to where it already is.
D♯dim7 chord changes
These are the changes you'll meet most often with D♯dim7, using the first shape of each chord.
- E (leads up a half step): D♯dim7 to E: play E in root position (E–G♯–B), while D♯ moves up to E, A down to G♯ and C down to B. E on piano
- Em (leads up a half step): D♯dim7 to Em: play Em in root position (E–G–B), while D♯ moves up to E, F♯ up to G and C down to B. Em on piano
- A♭ (a fifth down): D♯dim7 to A♭: play A♭ in 2nd inversion (E♭–A♭–C) and E♭ and C stay under the same fingers, while A moves down to A♭. A♭ on piano
D♯dim7 is a diminished seventh: three minor thirds stacked, so the chord divides the octave into four equal parts. D♯dim7 can stand in for a dominant seventh a half step below, which is why it links chords so smoothly. On piano you hear it best with the keys pressed together, then rolled.
Practice D♯dim7 in two minutes
Roll the chord up and back down, D♯, F♯, A, C, A, F♯, D♯, before playing it as a block. Finish with the inversions in order: D♯–F♯–A–C; F♯–A–C–D♯; A–C–D♯–F♯; C–D♯–F♯–A.
The keys of D♯dim7
D♯dim7 is a diminished seventh chord, 1–♭3–♭5–♭♭7 from D♯. Root position, from the bottom: how D♯dim7 is built.
| Note | Key | Fingers | Role |
|---|---|---|---|
| D♯ | black key | RH 1 · LH 5 | root |
| F♯ | black key | RH 2 · LH 3 | minor third |
| A | white key | RH 3 · LH 2 | diminished fifth |
| C | white key | RH 5 · LH 1 | diminished seventh |
E♭dim7 is another spelling of D♯dim7. Same keys, same sound.
D♯dim7 in context
D♯dim7 on guitar and ukulele
D♯dim7 on guitar and ukulele uses the same 4 notes in a different layout. See all three together.
Next to try on piano
Other diminished seventh chords
D♯dim7 on piano: questions
What notes are in D♯dim7 on piano?
D♯, F♯, A and C: D♯ (black key), F♯ (black key), A (white key) and C (white key). Right hand 1-2-3-5, left hand 5-3-2-1.
How do you play D♯dim7 on piano?
Press D♯, F♯, A and C together (2 black, 2 white). Right hand: 1 on D♯, 2 on F♯, 3 on A and 5 on C.
What are the inversions of D♯dim7?
1st inversion (F♯–A–C–D♯), 2nd inversion (A–C–D♯–F♯) and 3rd inversion (C–D♯–F♯–A), after root position (D♯–F♯–A–C). Only the lowest note changes.
What does D♯dim7 look like on the keyboard?
black, black, white and white keys, the same pattern as A♯dim7, so one hand shape covers all of them.
Every shape above plays only D♯, F♯, A and C, checked by the site's tests. Updated September 2026.