B-double-sharp half-diminished 11th flat 9th chord

Also called: B-double-sharp minor 11th flat 5th flat 9th
Symbols: B𝄪^ø11♭9
B𝄪m^11♭5♭9
Notes: B-double-sharp (root)
D-double-sharp (minor 3rd)
F-double-sharp (diminished 5th)
A-double-sharp (minor 7th)
C-double-sharp (minor 9th)
E-double-sharp (perfect 11th)

Bass doubling

Sustain

This is a partial, close, root-position voicing (omitting the 9th).
This is the full, close, root-position voicing.
This is a full, open, root-position voicing.

Type

Root

Chords built on the tonic of the diatonic modes

Lydian	B𝄪	B𝄪M⁷	B𝄪M⁹	B𝄪M^9♯11	B𝄪M^13♯11	B𝄪^add9	B𝄪^add♯11	B𝄪⁶	B𝄪^6add9	B𝄪^6add♯11	B𝄪⁵	B𝄪^sus2
Ionian		B𝄪M⁷	B𝄪M⁹	B𝄪M¹¹	B𝄪M¹³		B𝄪^add11			B𝄪^6add11			B𝄪^sus4
Mixolydian		B𝄪⁷	B𝄪⁹	B𝄪¹¹	B𝄪¹³		B𝄪^add11			B𝄪^6add11				B𝄪^7sus4	B𝄪^9sus4	B𝄪^13sus4
Dorian	B𝄪m	B𝄪m⁷	B𝄪m⁹	B𝄪m¹¹	B𝄪m¹³	B𝄪m^add9	B𝄪m^add11	B𝄪m⁶	B𝄪m^6add9	B𝄪m^6add11						B𝄪^13sus4
Aeolian			B𝄪m⁹	B𝄪m¹¹	B𝄪m^11♭13	B𝄪m^add9		B𝄪m^♭6	B𝄪m^♭6add9	B𝄪m^♭6add11
Phrygian			B𝄪m^7♭9	B𝄪m^11♭9	B𝄪m^11♭9♭13	B𝄪m^add♭9		B𝄪m^♭6	B𝄪m^♭6add♭9	B𝄪m^♭6add11
Locrian	B𝄪^o	B𝄪^ø7	B𝄪^ø7♭9	B𝄪^ø11♭9	B𝄪^{ø11♭9♭13}

Mode

Tonic

Chords built on each degree of the mode

Please note: This app doesn’t include every chord, nor every name, symbol, or voicing of the included chords.