Fm7b5

F half-diminishedNotesF G# B D#Formula1 b3 b5 b7

The half-diminished chord, also written m7b5 or ΓΈ, is a diminished triad with a flat seventh. It is the ii chord in a minor key, so you meet it all the time in jazz progressions like Bm7b5 to E7 to Am.

B
G#
D#
F
Shape