C??
"The relations of the components of the electric streams are: Dominant E flat, harmonic A flat, enharmonic C double flat.
"The keynote of electromagnetic sympathy in "transmissive combinations" is:
"THIRDS ON FIRST OCTAVE SUBDIVISION B FLAT DIATONIC
"SIXTHS ON SAME SUBDIVISION OF THIRDS OCTAVE HARMONIC
"NINTHS ON SAME SUBDIVISION OF SIXTHS OCTAVE ENHARMONIC [Snell Manuscript]
See Also