piano scale
G diminished (half–whole)
G1A♭♭2B♭♭3B3C♯♯4D5E6F♭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
GHA♭WB♭HBWC♯HDWEHFWG
What is true of it
G diminished (half–whole) is G, A♭, B♭, B, C♯, D, E and F, and back to G.
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
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 G
G whole tonesymmetricG diminished (whole–half)symmetricG majormajorG natural minorminorG 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