[meself:] I think it might be a little hard to determine, though, whether the singer of "yih" or "yuh" is "thinking" "ye" or "you" ...

...except when singers provide the texts in their liner notes.

I think Burke wanted the song to sound rustic and comic, rather than contrived--note that all dialect is conveyed solely through word choice, not altered spellings like "in'" for -ing.