This is HandSonic 10 free dvd. HandSonic 10 is a very cool instrument for serious percussionists which debut in 2006.

Instructor and percussionist is Tommy Snyder of Godaigo. A percussionist is Ikuo Kakehashi, I think he's son of the Roland company boss. He's a professional percussionist who made 3 of the demo songs in HandSonic 10. He also appeared in Roland Music School's exhibition.

Contents
1 Opening
2 Introduction of Sounds
3 Coach Mode
4 Style Guide Metronome
5 DBeam Controller

http://www.roland.co.jp/mov/HandSonic10/main.html

My favorite percussionist is MASAKing. Here is his blog.
http://blog.livedoor.jp/drums_masaking/

MASAKing is a professional percussionist and drummer. His live breakbeats is the best solo performance. See his cool performance using HandSonic 10 with SP 404. He really uses his head :D
http://lib.roland.co.jp/mov/HPD-10/05/300.html

HandSonic 10 Homepage
Play with a virtual HandSonic 10 and listen to all 5 demo songs in here. Ikuo Kakehashi made the Latin, Indian, Tropical and Samba de Droid demo songs.
http://www.roland.co.jp/FrontScene/0604_HPD-10/index.html