This is the VST instrument GSi KeyPerformer running on a V-Machine. The sound is directly coming from the little V (hq this time! :-)) Unfortunately the USB controller I'm using in this video has a terrible keyboard action, practically impossible to play piano sounds with the correct expression...
This is a preview of the prototype of the awesome new keyboard version of the Waldorf Blofeld synthesizer. The keyboard version adds 60MB of user sample memory (accessed via USB) and a solid semi-weighted keyboard. Coming this December!