x 4 5 3 5 x
C# dim7
C# diminished seventh (dim7)
Notes: C# · E · G · Bb
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, E dim7, G dim7 and Bb dim7.
Also spelled Db dim7
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (3)
9 x 8 9 8 x
x x 11 12 11 12
Other shapes (31)
Showing 12 of 31
x x 11 0 11 0
x 4 5 3 5 0
x 4 5 0 5 6
x 4 5 3 2 0
9 7 8 0 8 0
9 10 8 0 8 0
x x 11 0 11 12
x x 11 12 11 0
9 10 11 0 11 0
x 4 2 3 x 3
9 10 8 0 11 0
x 4 x 3 5 3
About C# dim7
C# dim7 is built from four notes: C# (root), E (minor third), G (diminished fifth) and Bb (diminished seventh). Its interval formula is 1 – b3 – b5 – bb7. It is a diminished seventh chord: it stacks three minor thirds, sounds very tense and unstable and wants to resolve, typical of jazz and classical music.
C# dim7 has 3 common voicings, based on the A, E and D shapes of the CAGED system. The viewer also shows 31 more voicings, from easiest to hardest. Another way to write C# dim7 is Db dim7 (the same piano key, with a different name). C# dim7 is the usual choice.