What are KS and MD? (It is not surprising that something written by Rudolf Steiner was a muddled mess. There are lots of more modern sources that explain that stuff so it makes sense).

Those subharmonic scales are actually *very* familiar to a lot of people in the developed world. They're the pitch set used by most fruit machines for those little fanfares that keep people playing. It was easier to program them back in the 1970s by using frequencies in arithmetic progression, and even though modern sound chips can do far more normal-sounding music if you want, that old pitch set instinctively means "MONEY!!!" to the punters, so they stick with it.