Hi guys, I'm pretty new to both playing organ and using midi, but I'm very eager to learn both. My dad played/plays Hammonds so it's a familiar sound, but I've been out of my hometown for years and am pining for that sound again. My setup is a very basic Yamaha keyboard connected via midi to a computer. There are buttons on it other than the keys, but I don't think they have any effect over the midi connection - I could be wrong. I would love to be able to map the rotator speed controls to something - even if it's the lowest 2 keys on the keyboard or something. Is this an option, what other options do I have?