A video demonstration of effortless playing.
PART 1: spoken information and playing demonstration.
 
Windows Media 1.5 Mb , RealVideo 4 Mb 

PART 2: playing demonstration of Rhythm changes.
 
Windows Media 1.2 Mb , RealVideo 3.4 Mb 
 
Pictures of good posture.
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Click the pictures to enlarge.