I listened to some of the MP3 recordings on that website.. In my ears it's
simply heavily filtered (very dull) and reverberated while lower velocities
don't sound realistic to me.. Just a personal oppinion..
Bwaltz.mp3 also seems to have some polyphony issues or at least some strange
note-cuttoffs..I didn't listen to all of the recordings though.
Anyhow I'll try to make a more bassy version of Grandest Piano as an option
together with Jazz, Pop etc. versions.