These are Ketron SD9 soundfonts. Somebody sampled his own SD9. Sorry I didn't include the source in my previous post.

Here's the link.
https://www.varranger.com/vforum/index.php/topic,3612.msg28631.html#msg28631

Dan's own sounds are very good, too but they are "proprietary" in that they can be used only in vArranger.