C#dim7 chord
C# diminished 7th · also written Dbdim7
C4
C#
E
G
Bb
C5
Want it in context? Open C#dim7 on the full piano.
Notes
- C#R
- Eb3
- Gb5
- Bb6
Formula: R – b3 – b5 – 6
C#dim7 inversions
The same notes, with a different note in the bass.
Root position C#dim7
C4
C#
E
G
Bb
C5
1st inversion C#dim7/E
C4
E
G
Bb
C5
C#
2nd inversion C#dim7/G
C4
G
Bb
C5
C#
E
3rd inversion C#dim7/Bb
C4
Bb
C5
C#
E
G
More C# chords
Diminished 7th chords in other keys
FAQ
What notes are in the C#dim7 chord?
The C# diminished 7th chord (C#dim7) has 4 notes: C#, E, G and Bb.
How do you play C#dim7 on the piano?
Put your right hand on C#, E, G and Bb, starting from C#. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).
What is the formula of a diminished 7th chord?
R – b3 – b5 – 6 (in semitones from the root: 0, 3, 6, 9).
Is C#dim7 the same as Dbdim7?
Yes. C# and Db are the same key on the piano (enharmonic), so C#dim7 and Dbdim7 sound the same.