piano scale
D diminished (whole–half)
D1E2F♭3G4A♭♭5B♭♭6B6C♯7
Eight notes alternating whole step and half step. Symmetrical, so it repeats every minor third.
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
DWEHFWGHA♭WB♭HBWC♯HD
What is true of it
D diminished (whole–half) is D, E, F, G, A♭, B♭, B and C♯, and back to D.
Its steps are W – H – W – H – W – H – W – H, where W is a whole step and H a half.
Chords made only of these notes
C♯majorC♯mminorC♯dimdiminishedC♯7dominant seventhC♯m7minor seventhC♯m7♭5half-diminished seventhDdimdiminishedEmajor
Found by testing every chord in the catalogue against these 8 sounds, not chosen.
Other scales on D
D whole tonesymmetricD diminished (half–whole)symmetricD majormajorD natural minorminorD harmonic minorminor
C dim W-HC♯ dim W-HD♭ dim W-HD♯ dim W-HE♭ dim W-HE dim W-HF dim W-HF♯ dim W-Hall 374