Forgot to mention that I've also got a Ketron SD1 when you asked me on here. It's for sale though as having 4 keyboards has now taken over the house.
Just heard the Tears in Heaven demo posted and where praise is due I do give it. This is the best demo up to yet that has been posted by nielshs.

"Tears" is outstanding. "Saints" is also very well done.
Drums are the only ones I've heard to date that rival Ketron's.
DonM