Voicing of F Dominant b5

Rooted Guide Tones I

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Left hand
F3A3Eb4
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Rooted Guide Tones

The Rooted Guide Tones I voicing of F7b5 stacks F, A and Eb from the bottom up: the root, major 3rd and minor 7th of the chord.

It's one of the Rooted Guide Tones voicings: the root, 3rd and 7th in the left hand, as bebop pianists comped. The other for F7b5 is Rooted Guide Tones II.