C#dim chord

C-sharp diminished, also written Dbdim. 2 shapes on the neck below, with the notes it's built from and the keys it belongs to.

Notes

  • C#
    1
  • E
    b3
  • G
    b5

The minor third is what makes it sound sad or dark.

The diminished fifth adds tension that wants to move somewhere.

How to play C#dim

Founding players

Want to know why this chord works where it does? The Intermediate lessons cover it, and founding players get them first.

One email to confirm, then an occasional note when lessons ship.

Keys with C#dim

C#dim uses only notes from B minor and D major. It sounds most at home in B minor.