Fm7b5

The Fm7b5 chord sounds dark and ambiguous, the classic jazz ii chord in minor keys. 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. The Tristan Chord — Wagner, 'Tristan und Isolde' (1865).

Notes: F – G# – B – D#  |  Formula: 1 – b3 – b5 – b7