AAS has been around Cakewalk for quite a while,,, I got Tassman 4 from an upgrade with Sonar 3,,, IIRC,,,
I just upgraded to Lounge Lizard EP-4 and it's amazing. I always hate to say something is the best, because I know I haven't tried EVERYTHING on the market,,, but it's the Best Electric Piano by far that I've played. It's got the Wurlitzer stabs of Supertramp and the ringing tines of the Rhodes so sweetly,,,, it's total ear candy. I love it! It's like I have the real thing, only better,,, ;)