Voicing of Bb Dominant 7 sus4 b9

Guide Tones I

Back to Bb7susb9

Space plays and stops
Left hand
Bb2
Right hand
Eb4Ab4
Family
Guide Tones

The Guide Tones I voicing of Bb7susb9 stacks Eb and Ab from the bottom up: the 4th and minor 7th of the chord. It leaves out the root, Bb, 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 Bb7susb9 is Guide Tones II.