B Diminished Major 7th

Symbols:BdimMaj7
Scale Degree Formula:1-♭3-♭5-7
Interval Stack:m3 + m3 + P4
Notes:B, D, F, Bb
Hear this chord:▸ Synth

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, 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 root 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♭7Bb7m3m3P4

Similar Chords

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

Chord TypeChords
Added 9thBbadd9
Augmented Major 7thF#+Maj7
DiminishedBdim
Diminished 7thG#dim7, Fdim7, Ddim7, Bdim7
Dominant 7thG7, Bb7
Dominant 7th Flat 9thBb7b9
Dominant 7th Sharp 9thG7#9
Half-Diminished 7thBm7(b5)
MajorBb
Major 2ndBb2
Major 6thBbM6
Major 7thBbM7
Major 7th Flat FifthBMaj7b5
Major Added 11thBbadd11
Minor 6thDm6
Minor 7thGm7
Minor Major 7thBmM7

Associated Scales

This chord can be found in the following scales.

ScaleRoots
Dorian b5G#, F
Harmonic MajorF#, D#
Harmonic MinorD#
Ionian #5F#
Locrian bb7F, D
Locrian ♮6F
Lydian #9B
Lydian Augmented #2D, B
Lydian b3G#, B
Mixolydian b2Bb, C#
Phrygian DominantBb
Phrygian b4Bb, G
Super-Locrian bb7D
Ukrainian DorianG#

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