Tonogenesis in Future-Rokbeigalmki

hi,

This is an idea that popped into my head a while ago, when i was
contemplating what Rokbeigalmki would look like in a future period of
time from the time at which it is currently set.

The idea was that the "accent-lengthened" vowels in names, certain words,
and construct-case compounds would develop a *rising* tone, while the
"tilde-lengthened" vowels found in the language would develop *falling*
tone.

I.e.:
(disregarding any other sound changes)

ÍLUKÁ ("just like") /i:luka:/ would become [/i:lu/ka:], where the [/]
represents a rising tone on the following symbol.

ÎLUÂMAL-A ("the entire land", lit. "(the) all of (the) land") /ilu:ama:l/
would become [i/lu:a/ma:l].

The length of the vowel doesn't change because the pitch-shift takes
time.

KHEZÃ ("gaze") /xEza::/ becomes [xE\za:] {"khezà"?}, with the [\]
representing a falling tone.

The vowel length in tilde-lengthened vowels would shorten once the
falling tone takes over the phonemic burden of distinction.


Any comments?  questions?  etc.?


-Stephen (Steg)
 "You will begin to touch heaven, Jonathan, in the moment
  that you touch perfect speed.  And that isn't flying a thousand
  miles an hour, or a million, or flying at the speed of light.
  Because any number is a limit, and perfection doesn't have
  limits.  Perfect speed, my son, is being there."
                    ~ _jonathan livingston seagull_