Chord · Altered Dom.

B7♭9♭13 — B Altered ♭9♭13

B7♭9♭13 is the B altered ♭9♭13 chord. It is built on the root B with major 3rd (D♯), perfect 5th (F♯), minor 7th (A), minor 9th (C) and minor 13th (G) above it — the formula 1 3 5 ♭7 ♭9 ♭13, sounding the notes B D♯ F♯ A C G. On the piano it sits at B (octave 3) and above in the library's voicing; the same 6 notes in any octave are still B7♭9♭13.

Root
B
Quality
Altered ♭9♭13
Formula
1 3 5 ♭7 ♭9 ♭13
Notes
B D♯ F♯ A C G

On the keyboard

B7♭9♭13 on the piano keyboard: B D♯ F♯ A C GBD♯F♯ACG

The notes of B7♭9♭13

DegreeNoteInterval from the rootPitch
1BrootB3
3D♯major 3rdD♯4
5F♯perfect 5thF♯4
♭7Aminor 7thA4
♭9Cminor 9thC5
♭13Gminor 13thG5

Other altered dom. on B

Altered ♭9♭13 chords on every root

Part of the chord reference. See also the scales and the keys.