Cdim
Diminished · C – D♯ – F♯
- CR
- D♯m3
- F♯♭5
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the Cdim chord
The Cdim chord (Diminished) is built from C (the root), D♯ (a minor third) and F♯ (a diminished fifth). Diminished triads are tense and unstable, often used as passing chords between stronger harmonies.