Lot's of talk about needing new arrangers with 'groundbreaking' technology here, lots of technolust, but so far, I've seen little discussion of WHAT we actually want that really IS groundbreaking. Mostly, I hear a litany of features that already exist on one arranger or another, and we want them combined into one.

But, let's talk about what new features we'd like to see that DOESN'T exist in any current arranger...

Ideas?