There is just more of a sense of urgency to the east coast vibe. There's a fire, a reckless abandonment sort of thing. From the outset, the equation was simple enough. Jazz + rock = fusion. However, whether it was Miles Davis, Larry Coryell, John McLaughlin, or any of the pioneers of fusion, the music has always been far from simplistic. Musical depth has long been the trademark of a genre that has been through many incarnations and traversed a multitude of directions. Jazz and rock has been supplemented through time by funk and Latin and other enriching flavors of sound.