Does a parallel pronunciation rule exist in English that I can, generally, transfer to Irish? Specifically, I have inferred, perhaps erroneously, that broad vowels often translate to a "hard" consonant, e.g. church, car. Slender vowels, conversely, effect or require a "soft" consonant, e.g. cinnamon, cellar.
Perhaps I have not completed enough of the course to have learned whether one exists, but I hoped someone could provide insight. To the extent possible, I have emphasized pronunciation as I learn vocabulary and grammar.
c in Irish is what you call a "hard" consonant. carr, ceo, cinnte, conas and cupán are all pronounced with a "k" sound, and ch in Irish is a lenition of the "hard" consonant". I'm not sure why you think that the English "ch" is a "hard consonant" - it is used with both broad and slender vowels ("chap", "cherry", "chip", "chop", church" all have the same "ch" sound), and the English "ch" is clearly a modification of what you call a "soft c" - a totally different sound from the Irish ch, produced in a completely different location in the mouth.