C♯ Diminished 7th Chord (C♯dim7)
Notes: C♯, E, G, B♭. Tap any diagram to hear it.
C♯dim7
C♯dim7 on guitar
x-4-5-3-2-09-10-11-9-11-9Strings from low (left) to high (right). Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × = don’t play, ○ = open string.
C♯dim7 on ukulele
0-1-0-10-4-6-40-10-9-7C♯dim7 on piano
Other C♯ chords
Diminished 7th chords in other keys
About the C♯ Diminished 7th chord
Diminished seventh chords stack minor thirds all the way up, so the same shape repeats every three frets. They create strong, dramatic tension. C♯dim7 is built from the root (C♯), minor third (E), diminished fifth (G), diminished seventh (B♭).
Frequently asked questions
What notes are in the C♯ Diminished 7th chord?
The C♯dim7 chord is made of C♯, E, G, B♭: the root, minor third, diminished fifth, diminished seventh.
How do you play C♯dim7 on guitar?
The most common fingering is x-4-5-3-2-0, from the low E string to the high E string (x = don’t play that string, 0 = open string).
How do you play C♯dim7 on piano?
Press C♯, E, G, B♭ together. In root position the lowest note is C♯.