x 3 4 2 4 x
C dim7
C diminished seventh (dim7)
Notes: C · Eb · Gb · Bbb
Bbb sounds the same as A.
It is a symmetrical chord: its four notes are three semitones apart, so the same shape repeats every 3 frets and works for four chords (same notes, a different root): C dim7, Eb dim7, F# dim7 and A dim7.
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (3)
8 x 7 8 7 x
x x 10 11 10 11
Other shapes (18)
Showing 12 of 18
8 0 7 8 7 x
x 3 1 2 x 2
x 3 x 2 4 2
8 0 x 8 7 8
x 3 4 x 4 5
8 9 7 8 x x
8 0 10 8 7 x
x 3 1 2 1 2
x 3 4 2 4 2
8 0 7 8 7 8
8 0 x 8 7 5
8 6 7 x 7 x
About C dim7
The C dim7 chord is made up of C (root), Eb (minor third), Gb (diminished fifth) and Bbb (diminished seventh). In scale degrees above the root, the formula is 1 – b3 – b5 – bb7. It is symmetrical: its four notes are three semitones apart, so the same shape repeats every three frets and works for four different chords.
C dim7 has 3 common voicings, based on the A, E and D shapes of the CAGED system. There are 18 more voicings sorted by difficulty; use the viewer switches to add inversions and stretches.