The first time was trumpets and the second time was on flugels. They generally played in sub screaming range (I don't count anything below concert Eb/ F on trumpet as "screaming"), but Ol' Buddy in the middle played a clean, and rather forceful, F# and 'Double' G (on trumpet) at the end of the first clip... Hence the mic distortion.
Comments
I play this same sh*t in high school, when I played in a corp band after katrina! Damn I hated this long as score for the field show.