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- Left hand
- Bb2D3F#3Ab3
- Family
- 4-Note Rooted
The Rooted I voicing of Bb7#5 stacks Bb, D, F# and Ab from the bottom up: the root, major 3rd, sharp 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 Bb7#5 is Rooted II.