Movement and Rhythm - Moving the Body

My music instructor in college would often say for us to move our bodies while playing music, it helps with the rhythm. I sure have found this to be true through my years of playing and teaching. Though tapping your foot is a valuable tool, it's a fast muscle structure and can easily rush or drag without much indication to you while playing. When moving your body, the pendulum effect of the bodies large mass makes rushing or dragging less likely. Instead of your foot being influenced by your playing (faster/slower tapping), your body is influencing your playing (more consistent rhythm).

In Joe Filisko's lessons he calls this "The Sway." You can find his lesson on this in the video titled "Insight #7 - Rhythm, Groove & The Sway" on this lessom page http://www.bluesharmonica.com/lessons/intro_lesson_1_18_harmonica_insights