Diminished chords starting on #, not b

Diminished chords and half diminished seventh chord starts should not be built on flat roots. Use sharp roots instead.

- Diminished and half diminished chords never occur on flat roots in any major or minor key.

- Also, spelling any diminished chord as a stack of thirds without enharmonics results in chord tones with double flats, Cb, and Fb, whereas if you start on sharp roots those same tones are naturals.

Therefore, this rule should take precedence over BiaB’s preference to build chords on scale tones.