From: Sinnathurai Srivas (sisrivas@blueyonder.co.uk)
Date: Fri May 30 2008 - 16:37:35 CDT
The aytham in Tamil is a glottaliser.  (Aytham ஃ)
Alphabet in Tamil, contrary to all other languages, is the name for places of articulation. I think that is what IPA also defines alphabet as.
and aytham is the third dimensional glottaliser, doing functions such as ... 
"loosely explained q-ising!, h-ising!, etc...
Aytham takes the form of consonants and vowels, but in third dimension, and modifies the two dimensional results in various forms.
Sinnathurai
  ----- Original Message ----- 
  From: Lorna_Priest@sil.org 
  To: André Szabolcs Szelp 
  Cc: Karl Pentzlin ; Unicode List 
  Sent: 30 May 2008 21:57
  Subject: Re: Glottal stop languages
  "André Szabolcs Szelp" <a.sz.szelp@gmail.com> wrote on 05/30/2008 02:40:15 AM:
  > Hello,
  > 
  > While "usual" letters (q, etc.) do arguably have nothing to do with
  > your research, Karl's proposal of adding the period-designated
  > glottals does seem to make sense, as it's a related convention as in
  > using punctuation mark(s) for glottals.
  yes. if nothing else, it's very interesting! People have done some wierd things to represent glottals! 
  Lorna
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