piano scale
B diminished (half–whole)
B1C♭2D♭3D♯3E♯♯4F♯5G♯6A♭7
The same eight notes started a half step earlier: the scale that spells a dominant seventh with a flat ninth and a sharp ninth at once.
Written out
Every accidental is written in, rather than left to a key signature, so the letters can be read one at a time.
The step pattern
BHCWDHD♯WE♯HF♯WG♯HAWB
What is true of it
B diminished (half–whole) is B, C, D, D♯, E♯, F♯, G♯ and A, and back to B.
Its steps are H – W – H – W – H – W – H – W, where W is a whole step and H a half.
Chords made only of these notes
CdimdiminishedDmajorDmminorDdimdiminishedD7dominant seventhDm7minor seventhDm7♭5half-diminished seventhD♯dimdiminished
Found by testing every chord in the catalogue against these 8 sounds, not chosen.
Other scales on B
B whole tonesymmetricB diminished (whole–half)symmetricB majormajorB natural minorminorB harmonic minorminor
C dim H-WC♯ dim H-WD♭ dim H-WD dim H-WD♯ dim H-WE♭ dim H-WE dim H-WF dim H-Wall 374