Michael has provided the sysex for Music Box and other DSI Tempest presets here http://lauterzeit.com/pro_audio/synth_patches/
I also wanted to mention that Michael was kind enough to do a demo on Tempest at our August meetup in 2013 (photos here).
Michael’s work and demos with Tempest are quite inspiring and really show off the incredible range of features that make Tempest – well more than just a drum machine.
Artist site: http://www.markmoshermusic.com
Host of Sonic Encounters Podcast: http://markmoshermusic.com/podcast/.
Boulder Synthesizer Meetup founder and host: http://www.bouldersynth.com