What I'm thinking of is a tonal language.
Could it happen, and why?
On a related note, I am told some written - and important languages - have, or used to have NO vowels. Arabic, Hebrew, maybe other...
YHVH was written litteraly this way, by example, vowels added mentaly - there is still debates how to prononce old hebrew, methink.
You're thinking of the Zapotecs, I've heard the same thing about them.IIRC one Mesoamerican tribe had a language that was so tonal that on large enough distances they (successfully) communicated entirely in whistles (whose pitch represented the tones).
Also IIRC, some Polynesian languages consisted about 70% of vowels (that is, in average speech, there were 2-3 vowels to one consonant, and many common words had no vowels at all). They were also (IIRC again) not even tonal...
Well yes, quite different. Zapotecs have no fear of consonants. I don't not even sure that whistles would count as vowels for that matter.Well, the whistle language was somewhat different from the spoken one, wasn't it?