Re: C'ali update: tonal phonology

Just a small question.  If the tone of a word-final segment is always low, how can you tell
that a suffix has an underlying low tone if it comes last?  Does it function differently from a
word-final suffix that has an underlying high tone?  Also, is it the case that C'ali *can* have
underlyingly low tones?  In most high/low systems I know of, there are no underlying low
tones--they're assigned via a default rule.  In this way, high tones act very differently.  What
I mean is that an underlying high can spread, since its specified underlyingly.  Underlying
low tones cannot spread, however, since they're not there until the end.  Also, while affixes
can have a tone attached to them, it's more common for them to have no tone attached to
them at all.  Are there any affixes in C'ali that don't have any tones underlying, and do they
behave differently from those that do?  You mentioned that tone spreads leftward to
prefixes.  Does this mean that if a prefix has an underlying tone it'll be systematically
removed, or does the displaced tone move around, or stick around, resulting in contours?

Just a few questions.  I'm still having a devil of a time getting a hold of what tone is.  I'm
actually working on a South-East-Asian-style tone language right now, and so questions
like the above are constantly troubling me.

-David