Thanks you guys. I searched the MC-50 manuals all day today and found some info on program changes (PG) as they call it. I'm surprized it's not mentioned anywhere in the manual's indexs. A couple of guys from another website also contributed some info that got me on the right path. I have some concerns about the limitations of my synth, the YS200. I'm at work now and it will have to wait a few more hours till I get home. I apprecite your responses. If you wouldn't mine, please check back here tomorrow and look for this post. I'll either have some good news or a bunch more questions.