Hello.................I have a PSR2000 and cannot afford a PSR2100 right now. If someone would send me all the styles that are exclusive to the PSR2100 I can convert them to work on the PSR2000. I imagine the PSR21000 uses some of it's new voices in the new styles. I'm certain I could substitute acceptable PSR2000 panel or XG voices. I would share these with the whole group. Thanks --charley