That's why I'm convinced arrangers have not reach it's pinnacle yet. I think we should be ready to be stunned by what is yet to come. The engineers working on these are very creative indeed.
Henni
Actually there not, as everything you see on an arranger has been available in the pro market for at least 5 years, arranger designers just put these features in a form that a novice can play with little effort.
One thing to remember as well, talk to arranger manufacturers on the quiet, and they will all tell you the same thing, arranger sales are on the slide as people get bored with playing along to a style and now want something they can actually play themselves, (Rather than the style doing most of the work) hence nearly all manufactures have teamed up with 3rd party suppliers (Or crated their own) to add additional keyboards and pedals. (Styles are good, but not as satisfying as playing it yourself)
Bill