It originated from my personal email correspondence with my parents and as far as I know is deceased now. just too bad.
Conventional transliteration is based on phonetic similarities.
Conventional Egor's System ----------------------------------------- A a A a B b 6 6 V v B B G g /~ r D d 9 9 E e E e Yo yo E e Zh zh >|< Z z 3 3 I i U u I i I i K k K k L l /\ M m M M N n H H O o O o P p n n R r P p S s C c T t T T U U Y y F f O|O o|o (%) Kh kh X x Ch ch 4 4 Ts ts U, u, Y y bI bI Sh sh W w Csh Csh W, w, ' ' (mild) b b " " (hard) b b Ae ae e e Yu Yu }O }o Ya ya q q