Cdim chord
The C diminished chord (abbreviated "Cdim chord") is a triad consisting of the notes C, E♭, and G♭. The chord is formed by lowering the fifth of a C minor chord a half step.
Name
C diminished chord
Synonym
C diminished triad
Notes
C E♭ G♭
Intervals
1 ♭3 ♭5
Chord symbol
Co
Alternative symbols
Cdim Cm(b5) Cmb5
Type
triad (three-note chord)