the ┼ is like in you words: corn and horn.
Í as you use sometimes is like the
the swedish word for eagle = ÷rn, pronouce exactly as your word,earn .
But we have two way to pronouce Í, a soft and a hard way, ÷rn is the hard Í.
And for the letter ─. I have no example yet.
I will be back.
Maybe Ivan and Ulla could be a better help.
Fr÷zen Ícean II (64)