A page would explain the 5.1 sound feature and have links to download 5.1 sound samples recorded with pianoteq.

In the righ corner, next to each download link there would be a diagram image showing a configuration mics on pianoteq model, and a short text explaning the effect.

I supose about 5 files of 5.1 , and respective  diagrams , would be enough to get a idea of the potential of the feature.

People could save in a pen drive and listen in the home theater, case dont have 5.1 in the digital piano (or controller) station. So they could think about put upgrade to 5.1 system.

   So I imagine:  Why note create a nice pianoteq demonstration video with 5.1, featuring the variable sound possibilites of 5.1.

   But there is a problem, youtube only accepts stereo.
   I'm not aware of any web video hoster that accepts 5.1

   Any ideas?
   What about create a video and add a link to the 5.1 file (in other server) ?