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B7♭9

B 7th Flat 9 · 4 fingerings

Flattening the ninth of a dominant chord gives B7♭9 a dark, tense edge that pulls hard toward resolution — especially into a minor chord. It's essential jazz vocabulary for the V chord in a minor key, and it shares its notes with a diminished seventh a semitone up, which is why diminished shapes work so well over it.
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B7♭9 · position 1
5fr3241
B7♭9 · position 2 · fret 5
7fr123
B7♭9 · position 3 · fret 7
8fr123
B7♭9 · position 4 · fret 8

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Play-alongs whose transcribed chord changes include B7♭9.

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