Hello All
Just found this page while I was surfing the web, the songs are played on the Wersi Abacus, however what OAS software version is being used is unknown, although as some of the links don’t work, I would guess it goes back a bit.
Enjoy.

Bill
http://www.hjemme.no/wersi/AbacusRecordings.htm

Hi Bill, thanks for sharing the link.

It will show people on SZ quite a few different sounds that the Abacus had about 3 years ago. With probably 3 OAS updates since then, the current OAS sounds are way ahead of those heard on here.

I know Wersi are not on every street corner, same goes for Lionstracs with the Mediastation, but both do offer loads of features that some other arrangers currently don't have/support.

Strangely listening to the songs I noticed right away that the first song and "I will survive" are played with old Yamaha Styles.

Eric