I just posted a video tutorial where I demonstrate how to use Ableton Live 8 and the Velocity MIDI device along with a dummy clip to add velocity to incoming MIDI notes that are a fixed velocity. Circle appears as the synth being driven by the Tenori-On.
See the video here: http://www.modulatethis.com/2009/12/ableton-live-add-velocity-midi-notes-tenori-on.html
Mark Mosher
Download my new album: http://www.RebootAlbum.com