Is the "r" in this pronounced as "th" in English?
In some dialects, an "r" after an "i" will sound a bit like that, though that's not exactly what it is.
To my ear, it sounds like th in "then".
With ither pronouns you add an a in frony, why not here? Is it a grammar thing?
Does anyone know if the Latin alphabet was the original used by Gaelic? Things like "mh" pronounced as "v" and "r" as "th" are unlike any other use of that alphabet, as far as I know. Many words look nothing at all like their pronunciation.
I am hearing this as ah-hert, is that correct?
Not quite. The "th" sound isn't pronounced. So athair sounds like (more or less) "ahairth".
I hear aher