Voicing of A Dominant b5

Drop 2 IV

Back to A7b5

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Left hand
A2
Right hand
C#4G4A4Eb5
Family
Drop 2

The Drop 2 IV voicing of A7b5 stacks C#, G, A and Eb from the bottom up: the major 3rd, minor 7th, root and flat 5th 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 A7b5 are Drop 2 I, Drop 2 II and Drop 2 III.