Voicing of Cb Dominant b5

Drop 2 II

Back to Cb7b5

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Left hand
Cb3
Right hand
Bbb3Eb4Gbb4Cb5
Family
Drop 2

The Drop 2 II voicing of Cb7b5 stacks Bbb, Eb, Gbb and Cb from the bottom up: the minor 7th, major 3rd, flat 5th and root 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 Cb7b5 are Drop 2 I, Drop 2 III and Drop 2 IV.