@fromtheendlessvoid @brassmusic It's possible that these are classed as Mellophones in an American Band(or have been dropped altogether?!) - here's the list of the brass line-up for the Ohio State University band -
12 E-flat #Cornets
51 B-flat #Trumpets
21 #Flugelhorns
28 #Mellophones
21 #Trombones
7 Bass Trombones
28 #Baritone Horns
28 #Sousaphones
That's a BBBIIIIIIIIIIGGGGG sound!!....but no mention of Marching French Horns!