D diminished 7 chord on piano

The D diminished 7 chord (Ddim7) is D, F, A♭ and C♭. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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Ddim7, diminished seventh chord

D, F, A♭ and C♭

D diminished 7 chord on a piano keyboard: D, F, A♭ and C♭, starting from middle C upwardC4DFC♭C5A♭
Root
D
Minor third
F
Diminished fifth
A♭
Diminished seventh
C♭

Formula

1 ♭3 ♭5 𝄫7 (3, 6, 9 half steps above D)

Fingering in root position

Ddim7 root position: notes from the bottom up and fingering
NotesDFA♭C♭
Right hand1235
Left hand5321

C♭ is played on the white key B.

D diminished 7 inversions

D 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.

Ddim7

Root position

D diminished 7, root position, on the piano: D, F, A♭ and C♭ from the bottom upC4DFC♭C5A♭
Ddim7 root position: notes from the bottom up and fingering
NotesDFA♭C♭
Right hand1235
Left hand5321

Ddim7/F

First inversion

D diminished 7, first inversion, on the piano: F, A♭, C♭ and D from the bottom upC4FC♭C5DA♭
Ddim7/F first inversion: notes from the bottom up and fingering
NotesFA♭C♭D
Right hand1235
Left hand5321

Ddim7/A♭

Second inversion

D diminished 7, second inversion, on the piano: A♭, C♭, D and F from the bottom upC4C♭C5DFA♭
Ddim7/A♭ second inversion: notes from the bottom up and fingering
NotesA♭C♭DF
Right hand1235
Left hand5321

Ddim7/C♭

Third inversion

D diminished 7, third inversion, on the piano: C♭, D, F and A♭ from the bottom upC4C♭C5DFA♭
Ddim7/C♭ third inversion: notes from the bottom up and fingering
NotesC♭DFA♭
Right hand1235
Left hand5321

Keys with D diminished 7

Roman numerals give a chord's place in a key: capitals for major chords, small letters for minor, ° for diminished. D diminished 7 appears as:

  • vii°7 in E♭ minor

How D diminished 7 is built

D is the root, F the minor third, A♭ the diminished fifth and C♭ the diminished seventh.

A diminished seventh chord stacks three minor thirds, so every note is 3 half steps from the next. That symmetry means D diminished 7 uses the same four keys as F diminished 7, G♯ diminished 7 and B diminished 7.

Every chord takes every other letter of the alphabet, so the letters of D diminished 7 are D, F, A, C. That is why it is spelled D, F, A♭ and C♭.

Find D 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 D diminished 7, in any octave and any order.

CDEFGABCDEFGAB

Practice D diminished 7 in real music

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Questions

What notes are in the D diminished 7 chord?

D diminished 7 (Ddim7) has four notes: D, F, A♭ and C♭. D is the root, F the minor third, A♭ the diminished fifth and C♭ the diminished seventh. C♭ is played on the white key B.

What fingers do you use for D diminished 7 on piano?

In root position, play D, F, A♭ and C♭ 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 D diminished 7?

D diminished 7 has 3 inversions, one for each note other than the root at the bottom. First inversion (Ddim7/F): F, A♭, C♭ and D. Second inversion (Ddim7/A♭): A♭, C♭, D and F. Third inversion (Ddim7/C♭): C♭, D, F and A♭.

What key is D diminished 7 in?

D diminished 7 appears as vii°7 in E♭ minor.