Guitar chords in the key of A:
Chord Am7b5 (7th fret) notes: A, Eb, G and C. You must leave out the 6th and 5th strings.
Am7b5 - A half-diminished minor 7th guitar chord's alternative names: Am7-5, Aø, Am7b5, A-7b5, Amin7-5 and Amin7b5. See also: Adim and Adim7.
1(A), b3(C), b5(D#/Eb), b7(G).