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- Left hand
- F#3A3B#3D#4
- Family
- 4-Note Rooted
The Rooted III voicing of B#dim7 stacks F#, A, B# and D# from the bottom up: the flat 5th, diminished 7th, root and minor 3rd 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 others for B#dim7 are Rooted I, Rooted II and Rooted IV.