Chords » D# Minor 7th Flat Thirteenth (4th inversion)

Symbols:D#m7b13/B
Scale Degree Formula:1-3-5-7-9
Interval Stack:M3 + m3 + M3 + m3
Notes:B, D#, F#, Bb, C#
Hear this chord:▸ Guitar

Construction

This chord is an inversion of the D# Minor 7th Flat Thirteenth chord, so construction is a little different from standard chords. An inversion is the same as the base version of a chord, though its notes are played in a different order. For this inversion, you'll start with the notes of the base chord (D#, F#, Bb, C#, B), then count 4 to the right to find the lowest note of this chord (B). The rest of the notes to the right of this continue this chord, and then we 'wrap around' to the beginning, until we have reached our new first note. After all of this, we end up with the final notes for this inversion: B, D#, F#, Bb, C#.
You can also use the more traditional methods described below, though you'll need to start from the lowest note as described above to find your starting point. The scale degree and interval stack listed above are from the perspective of this interval, so they'll produce the same notes as the base chord, but in the order required by this inversion.
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, 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#9M3m3M3m3

Similar Chords

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

Chord TypeChords
Added 9thBadd9
Dominant 6thF#7(6)
Dominant 7th Flat ThirteenthD#7b13
Dominant 7th Sharp 9thD#7#9
Dominant 7th Sharp Five Sharp 9thD#7#5#9
Dominant 9thB9
Major 2ndB2
Major 6thF#M6
Major 7thBM7
Major 7th Flat ThirteenthBMaj7b13
Major 9thBM9
Major 9th Flat FifthBMaj9b5
Major Added 11thF#add11
Major EleventhBM11
Minor 7thD#m7
Minor 7th Flat ThirteenthD#m7b13
Minor 9thG#m9, D#m9
Minor EleventhG#m11
Minor Major 9thBmMaj9
Six-NineF#6/9, B6/9

Associated Scales

This chord can be found in the following scales.

ScaleRoots
DorianG#, C#
Dorian b5C#
Harmonic MajorB
LocrianBb, F
Locrian bb7Bb
LydianE, B
Lydian Augmented #2G
Lydian b3E
MajorF#, B
MinorG#, D#
MixolydianF#, C#
Mixolydian b2F#
PhrygianBb, D#
Phrygian b4D#

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