Em7b5

E half-diminishedNotesE G A# DFormula1 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.

G
D
A#
E
Shape