B7♭5
B 7th Flat 5 · 4 fingerings
Flatten the fifth of a dominant seventh and B7♭5 becomes considerably more unstable and modern-sounding. It's a jazz and fusion colour, usually functioning as a substitute dominant on its way to resolution, and it pairs well with whole-tone and altered scale ideas. Uncommon outside of jazz, but striking when it lands.
B7♭5 · position 1
B7♭5 · position 2
B7♭5 · position 3 · fret 6
B7♭5 · position 4 · fret 9
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Play-alongs whose transcribed chord changes include B7♭5.
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