Guitar chords in the key of G:
G Am Bm C D Em F#dim

Chord Gm7b5 (8th fret) notes: G, Bb, F, G and Db. You should not play the 6th string.

This chord is played by placing a barre on fret eight with your index finger.

Gm7b5 - G half-diminished minor 7th guitar chord's alternative names: Gm7-5, Gø, Gm7b5, G-7b5, Gmin7-5 and Gmin7b5. See also: Gdim and Gdim7.

Steps: 1-b3-b5-b7.
1(G), b3(A#/Bb), b5(C#/Db), b7(F).