Voicing of Db Dominant 7 sus4 b9

Guide Tones I

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Left hand
Db2
Right hand
Gb4Cb5
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Guide Tones

The Guide Tones I voicing of Db7susb9 stacks Gb and Cb from the bottom up: the 4th and minor 7th of the chord. It leaves out the root, Db, for the left hand or the bass player to take.

It's one of the Guide Tones voicings: just the 3rd and 7th, the notes that define each chord, played over the root. The other for Db7susb9 is Guide Tones II.