Bb7b13

Dominant 7th Flat 13

Jazz

Click keys to experiment with the chord

Notes

1•A#43•D55•F5b7•G#5b13•F#6

Formula

1 – 3 – 5 – b7 – b13

Intervals: 0 semitones, 4 semitones, 7 semitones, 10 semitones, 20 semitones

Practice Note

Sometimes distinguished from 7#5 in certain voicing contexts — the natural 5th is retained alongside the b13.

About Bb7b13

The Bb7b13 chord sounds colorful and expressive. It is built from the notes A#, D, F, G#, F#, stacking 5 tones to create its distinctive sound. This chord is commonly heard in jazz.

Notes: A# – D – F – G# – F# | Formula: 1 – 3 – 5 – b7 – b13

Related Chords

Dominant 7th Flat 13 in other keys

C7b13 Db7b13 D7b13 Eb7b13 E7b13 F7b13

Other Bb chords

Bb5 — Power Chord Bb6 — Major 6th Bb7 — Dominant 7th Bb9 — Dominant 9th Bb11 — Dominant 11th Bb13 — Dominant 13th Bb — Major Bbm — Minor

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