Oh, and BTW, you CAN use the OTS buttons to store favorite sounds... You just use them to store four setups, and Hold the style, tempo and keyboard layout.

There is a software program that can copy these to the styles. The advantage is that, per style, you can pick and choose which four favorites you want...

Plus, you can Hold style and layout, and change UPG's (registrations) which opens a big door on accessing sounds while you play. Most of what you are familiar with from other arrangers can be done on a Roland, they just have a different way of achieving it...