Here are details of the OAS system and demos of the latest OAS 7 taken from the EX 1 Expander, which is the same as the Ikarus but without the keyboard. (The sound system is the same on all models)
No external samples or VSTs were used
You can listen to the tracks Direct or Download them.
I hope you enjoy

Bill
http://www.4shared.com/file/28662846/503c24d0/Wersi_Open_Art_System.html
http://www.4shared.com/file/29531341/38bb0716/Achy_Breaky_Heart.html
http://www.4shared.com/file/29531404/29f22018/Air.html
http://www.4shared.com/file/29531457/cd8c85e7/Amazing_Grace.html
http://www.4shared.com/file/29531512/d848de5b/Amorada.html
http://www.4shared.com/file/29531593/679664c5/Anglo_Polka.html
http://www.4shared.com/file/29531647/d71360c8/Axel_F.html
http://www.4shared.com/file/29531694/fbb44f3f/Big_Band.html
http://www.4shared.com/file/29531766/93e058eb/Biscaya.html
http://www.4shared.com/file/29531811/49991cb2/Chatanooga_Choo_Choo.html
http://www.4shared.com/file/29531860/71dfbae3/Crazy_Mozart.html
http://www.4shared.com/file/29531921/63762546/Happy_Music.html
http://www.4shared.com/file/29531979/10da5931/Himbeereis_sum_frh.html
http://www.4shared.com/file/29532015/525226fd/Java.html
http://www.4shared.com/file/29532086/1a99cc0e/Mooskirchner_Polka.html
http://www.4shared.com/file/29532159/3e4ac5e5/Samba_Ole.html
http://www.4shared.com/file/29532196/2409778/Tico_Tico.html
http://www.4shared.com/file/29532253/dcd992a2/Time_To_Say_Goodbye.html
http://www.4shared.com/file/29532338/1c93869b/Verbel.html
http://www.4shared.com/file/29532389/88606fc6/Wonderful_World.html

Here are some sounds that were produced by Prinz Sound Studios for the OAS system, and can be used with any version from OAS 5 (2003) up.
Enjoy

Bill

http://www.4shared.com/file/29734106/bb21d2e6/Baritone.html
http://www.4shared.com/file/29734415/3df870f6/Brass_1.html
http://www.4shared.com/file/29734469/7b0faa1a/Distortion_Guitar.html
http://www.4shared.com/file/29734528/69a635bf/Distortion_Guitar_2.html
http://www.4shared.com/file/29734597/1aedf1e5/Enigma_Flute.html
http://www.4shared.com/file/29734643/aa68f5e8/Fairlight.html
http://www.4shared.com/file/29734710/4fd43a20/Film_Music_Sound.html
http://www.4shared.com/file/29734757/b5dc6a87/Stack_D50.html
http://www.4shared.com/file/29734825/1fcfda51/String_Quartet.html
http://www.4shared.com/file/29734870/12d2da9b/Synth.html
http://www.4shared.com/file/29734920/6e6744e9/Tenor_Sax.html
http://www.4shared.com/file/29734984/93e5687a/Voyager.html

They sure sound good . If not for the price, I would have one. Thanks for posting.
Bernie

Thank you Bill...great stuff here.

Thanx Bill....very interesting.

btw are there many Wersi players Not using pedals? Is the auto bass good enough to sustain the styles mood with playing pedals?

Hi DNJ
Auto bass is fine, (Just choose the chord style recognition you wish it to play it with, or just leave it in advanced mode)
The main reason pedals are used, is that a lot of the players on this side of the pond have either come from organ backgrounds, or just enjoy playing as much as they can themselves.
Regards

Bill