Silence. Silence is the key to concentration, you have to focus on what is happening and what you are doing. Silence on ly broken by a few notes, singing like rain drops on a cristal. Flies dancing to that light music as if they where ballerinas. Focus. And the trout is there coming up to eat regularly as if that fish was to give the tempo. It’s beautiful. Jazz & Fly Fishing, the right music, the right pace, the right strike. You have to be focused to succeed.