B Dominant 7th Flat Nine Flat Thirteenth

Symbols:B7b9b13
Scale Degree Formula:1-3-5-♭7-♭9-♭13
Interval Stack:M3 + m3 + m3 + m3 + P5
Notes:B, D#, F#, A, C, G
Hear this chord:▸ Guitar

Construction

Using the scale degree formula, we first start with the B major scale, and number each note in the scale starting from 1 - these are the scale degrees. Next, we use the scale degree formula, in this case 1-3-5-♭7-♭9-♭13, to select notes from our enumerated scale. When a chord requires notes that are not in the scale, this is indicated with a flat (♭) or a sharp (#) along with the scale degree; a ♭3, for instance, would be one half-step down from the 3rd scale degree.
Alternatively, we can use the interval stack to construct our chord. With this approach, we first start with the lowest note of the chord (B), then move our first interval (M3), which brings us to our second note in the chord (D#). We repeatedly apply each of the remaining intervals in the stack to get the full list of notes for our chord.
The diagram below shows how both the scale degree formula and interval stack methods result in the same selection of notes:
B1C♭2C#2D♭3D#3E4F♭5F#5G#5G#6A♭7Bb7B8C♭9C#9D♭10D#10E11F#11F#12G♭13M3m3m3m3P5

Similar Chords

The following chords are similar to this chord and may be a suitable replacement in certain scenarios.

Chord TypeChords
Dominant 7th Flat 9thB7b9
Dominant 7th Flat ThirteenthB7b13
Dominant 7th Sharp Five Flat 9thB7#5b9
Dominant 9th Flat ThirteenthB9b13
Dominant Eleventh Flat NineD11b9, B11b9
Major EleventhGM11
Minor 9th Flat FifthAm9b5

Associated Scales

This chord can be found in the following scales.

ScaleRoots
Dorian b5A
Harmonic MajorG
Harmonic MinorE
Ionian #5G
Locrian bb7F#
Locrian ♮6F#
Lydian #9C
Lydian Augmented #2D#
Lydian b3C
Mixolydian b2D
Phrygian DominantB
Phrygian b4B
Super-Locrian bb7D#
Ukrainian DorianA

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