The vowel exchange "a" to "o"

[Philipp Harland]

I have a question for everyone. I haven't found anything about this in the forum yet. Is there already a thread in which the a to o (or vice versa) swap has been discussed? (I am of course excluding my previous thread which was not commentable because of my thesis)
Is there already an analysis on this?

Here are a few examples:

Dom dam, chol chal, dol dal, pol pal, lol lal, cheol cheal, kooiin koaiin,
dain doin, Chor char, am om, or ar, oror arar, tol tal, chom cham,
kol kal, chaiin choiin, dar dor, daiin doiin, otchor otchar, taiin toiin,
saiin soiin, c+hol c+hal, aiir oiir, chory chary, dary dory, sal sol,

Vowel swap? As in f(1) = a and f(2) = o, and we consider the function g(1) = f(2) = o, and g(2) = f(1) = a? Am I getting this right?