Examples “I’m-A” or “I’m-a”? “A-Gonna” or a-Gonna", “A-Changing or a-Changing”? Normally when a hyphen is present, we treat words as if they are separate. Is this an exception?
In the cases that you cite “a” is not a component (word) in a compound word,.
If it were a word in a compound word and that word was the indefinite article “a” then it should be capitalized as such.
These cases are described here
As a prefix, it is the first letter in a word and should be capitalized as such.
Thanks! It’s just been bugging me for years and I never could find anything by searching the internet. I never even realized it was actually not a compound, that’s fascinating.