Okay, I made a big booboo, but I might get by, depends on what you're looking for here.
I read the directions for Exercise 1 the other day and I just did the exercise now without rereading the directions and forgot it was only supposed to be 1-2 measures.... my progression is nine measures.
I wrote the progression twice in the .mus... the first time I wrote each part A, B, and C all in the same measures, so I have the horns doing the progression, and below them are the trumpets, and below them are the trombones and tuba, each of the sections being self-contained and independent. I originally wrote the progression for 3 trombones and forgot the tuba, so I mixed it up a little and threw in some extra harmonies. The second time, after the final bar line, is where I added and subtracted sections and switched some harmony parts around. This is part D, I believe.
If you want me to do this again with something simpler and shorter, I will, I just completely forgot that it was supposed to be a little simpler.
