Voicing of Ab Dominant b5

Rooted I

Back to Ab7b5

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Left hand
Ab2C3Ebb3Gb3
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4-Note Rooted

The Rooted I voicing of Ab7b5 stacks Ab, C, Ebb and Gb from the bottom up: the root, major 3rd, flat 5th and minor 7th of the chord.

It's one of the 4-Note Rooted voicings: four-note voicings with the root on the bottom or inside, in the left hand. The other for Ab7b5 is Rooted II.