Piano chord · Sevenths

C♯ diminished 7th chord on piano

Right hand: C♯ (1), E (2), G (3), B♭ (5)

How to play C♯dim7 on piano: the keys to press, which fingers to use, inversions and how it’s written on the staff.

Symmetrical and very tense — every note is a minor 3rd apart.

C♯dim7 is the vii°7 chord in D minor.

Spell as D♭dim7
Notes
C♯EGB♭
Formula
1♭3♭5𝄫7
Built from
root · minor 3rd · diminished 5th · diminished 7th

Piano

Root position · numbers are finger numbers

𝄞𝄢

How to play it

Right handC♯1 · thumbE2 · indexG3 · middleB♭5 · pinky

Left handC♯5 · pinkythe root, an octave lower

Finger numbers: 1 thumb · 2 index · 3 middle · 4 ring · 5 pinky. Inversions use the same notes with a different one on the bottom — they help you move smoothly between chords. Tap any key to hear it.

Tips for playing C♯dim7 on piano

On piano, C♯dim7 has two black keys (C♯ and B♭) and two white keys.

C♯dim7 piano chord diagram (C♯ diminished 7th)
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