Sadly, even Roland comes up WAY short in this area. Korg is far and away the leader at giving virtually WS level editing on arrangers. Mysteriously, it doesn't seem to put them out of business, and I would be unsurprised to find the large majority of users really don't USE that level of detail, but they still manage to sell quite well DESPITE this feature!

Something the other arranger manufacturers could learn from, I think!

As long as these parameters are tucked out of sight for the casual user, this could only improve sales for any arranger that implements it...