Space plays and stops
- Left hand
- Bb2
- Right hand
- D4Ab4Cb5
- Family
- Rootless 3-Note Shells
The Shell I voicing of Bb7b9 stacks D, Ab and Cb from the bottom up: the major 3rd, minor 7th and flat 9th of the chord. It leaves out the root, Bb, for the left hand or the bass player to take.
It's one of the Rootless 3-Note Shells voicings: three-note rootless voicings: the 3rd and 7th with one more tone, played over the root. The other for Bb7b9 is Shell II.