Life can veer abruptly, in mere seconds, from the way it was to the way it is. Occasionally, change occurs so gradually that metamorphosis is under way before you can even detect the unfamiliar wind.

In John Potter's life, both types of change shaped his life in Japan.

Potter, author of the definitive English book on Okinawan music, "The Power of Okinawa," never planned a life in root music; indeed, the author admits he's never methodically planned anything in his life. "The thing about me is I never had any great ambition or big plan in my life. I have kind of drifted into things without any master plan. It has always worked out, so I recommend it."