http://dswarmsikhttkg7jgsoyfiqpj3ighupfrvuz5ri3lu5q2dlqyrpgk7ad.onion/share/archive/misc/zender.A_Roadmap_for_Orpheus.html
This finding triggered the idea to divide a tempered semitone into six
tones in order to create intervals that — though still tempered —
are six times more precise and thus better suited for correcting
ambiguities in the thirds, sevenths, and the tritone, and also capable
of representing the ’higher’ harmonics (that result from modulations) in
a much more precise way.