Fdim7

The Fdim7 chord sounds intensely tense and symmetrical, often used as a passing chord. It is built from the notes F, G#, B, D, stacking 4 tones to create its distinctive sound. This chord is commonly heard in jazz, and gypsy jazz.

Notes: F – G# – B – D  |  Formula: 1 – b3 – b5 – bb7