Ok, here it goes.
I have re-written exercise 5 and I directly went to 6b, don't know why - guess I was eager to test 4 horns. I think I have failed with the resonance completely. I guess I got a bit carried away
I will redo it again. I don't really know how this turned out since I spent too many hours on my first attempt, and I just recently deleted the entire thing and re-did it.
Enough of crap talk, here it is.