Hi Bernie,
There used to be a company around that did styles for the korgs, but for the life of me I simply can't remember what they were called. I think it was a German company.

There's a really strange style on the Pa 3x called weird movie, I used it with some of my 3/4 styles. Another option I tried was jingling bell pads, with a normal style, gave it a bit of a Christmassy feel. I think it worked okay for Donny on his pa800 when he owned it years back.

I've got a heap of Korg factory styles from various keyboards, not tweaked though, I only tweak if I have a use for them.
I have some older yammies & biab , I converted which are tweaked for my pa3x. Welcome to have a copy .
Currently working on trying to convert some of my PSR s 950 styles across, which unfortunately are far more complicated to do than the early PSR styles.

What styles did you use on your PSR for Xmas songs.