Cdim7

The Cdim7 chord sounds intensely tense and symmetrical, often used as a passing chord. It is built from the notes C, D#, F#, A, stacking 4 tones to create its distinctive sound. This chord is commonly heard in jazz, and gypsy jazz.

Notes: C – D# – F# – A  |  Formula: 1 – b3 – b5 – bb7