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- Left hand
- Gb3Bbb3Dbb4Fb4
- Family
- 4-Note Rooted
The Rooted I voicing of Gbm7b5 stacks Gb, Bbb, Dbb and Fb from the bottom up: the root, minor 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 Gbm7b5 is Rooted II.