I am a new member and since yesterday I own the one and only "computer piano" including those free add-ons, like the Erard.
I played around a bit and applied an already made MIDI file to this wonderful instrument.

After several hours of "velocity tweaking" and tempi alterations, including shifting the pedal signs I managed to make the following lengthy piece of music:

Hexameron - free to download, including the "altered setting". See also my website for more info.

Download link: http://www.box.net/shared/uucaumjvsc
Website: http://www.b-major.org (down the middle column).

Really, it is ashtonishing what this instrument sounds like.
Be warned, Hexameron is a very "pompous" piece and it is also called: Variations de Bravour, now you know why sometimes the volume raises skyhigh.

Raymond Robijns