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Dominant family

B♭ dominant seventh flat five chord

B♭7♭5

B♭ dominant seventh flat five

Piano root position

  • Root
  • 3
  • ♭5
  • ♭7

Guitar standard tuning

Barre · fret 1

Lay your index flat across strings 5 to 3 at fret 1.

E×ADGBe12345Barre at fret 1B♭F♭A♭DA♭

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞♭♭♭

Intervals

12 semitones
  1. B♭1
  2. ♭2
  3. 2
  4. ♭3
  5. D3
  6. 4
  7. F♭♭5
  8. 5
  9. ♯5
  10. 6
  11. A♭♭7
  12. 7
  • B♭ Root
  • D Major 3rd
  • F♭ Diminished 5th
  • A♭ Minor 7th

About this chord

What is a B♭ dominant seventh flat five chord?

B♭7♭5 is built from 4 notes: B♭ (the root), D (the 3), F♭ (the ♭5), A♭ (the ♭7). A dominant with a lowered fifth: two tritones, the French-sixth sound.

Notes
B♭ · D · F♭ · A♭
Formula
1 · 3 · ♭5 · ♭7
Also written
B♭7(♭5)
Found in
Outside the major and minor keys

Neighbours

Chords close to B♭7♭5

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