OK, thanks again Chris. Hope to stay with this discussion group. If I can pass on anything to help, I will. I have downloaded several useful S2-S3 files from this webpage, the only one I've been able to find: http://members.xoom.virgilio.it/turbopage/.
I know this is an older GEM instrument-but best feeling spring-action keyboard I've played, and a very interesting instrument-maybe I better check out the GEM-club.