Just one more reason to use a stereo PA, I guess ;D
Here's a cute trick (that probably many already know
) for some cool arranger brass play...
Split the keyboard... Brass section on top, Sax section on the bottom (or vice versa, or even better, two reg's next to each other the same but swapped - swap any time)... Use the Pianostyle chord recognition (at least three notes to get a chord change)... Play George Shearing-type close voiced piano style (melody at top and bottom a lot!), but keep hands apart in their own section (at least, MOST of the time!)... A nice swing style, and just bass, drums and a piano comp (or guitar)...
Instant Big Band... (and YOU control what they play, not the arranger
)