Voicing of G Half Diminished

Drop 2 III

Back to Gm7b5

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Left hand
G2
Right hand
G3Db4F4Bb4
Family
Drop 2

The Drop 2 III voicing of Gm7b5 stacks G, Db, F and Bb from the bottom up: the root, flat 5th, minor 7th and minor 3rd of the chord.

It's one of the Drop 2 voicings: four-note chords in close position with the second note from the top dropped an octave, played over the root. The others for Gm7b5 are Drop 2 I, Drop 2 II and Drop 2 IV.