I am transposing this into Garage Band and this is very useful, I have gotten through two parts as I write this, the Tuba and Baritone, it took me 2 and 1/2 hours to transpose which shows how complicated this show is and I love it.
As a former member of this corps this year that was really close! Couple of spots in each movement that made me chuckle as I can definitely see how someone would hear those pitches instead. Well done!
I assume that you are on Musescore 4.1.1. Did the brass (and percussion, if you know) playback improved for marching stuff? It used to have a very soft attack and here it seems to be sounding way better for drum corp charts.
I’m using the MS basic sound font for all of my playback. I do not hear too much of a difference other than the reverb setting which I left on normal for every instrument except timpani (maxed it)