Guitar chords in the key of C major:
Chord Cm7b5 notes: C, Eb, Bb, C and Gb. You should not play the 6th string.
This chord is played by placing a barre on fret one with your index finger.
Cm7b5 - C half-diminished minor 7th guitar chord's alternative names: Cm7-5, Cø, Cm7b5, C-7b5, Cmin7-5 and Cmin7b5. See also: Cdim and Cdim7.
1(C), b3(D#/Eb), b5(F#/Gb), b7(A#/Bb).