Though jazz may be one of the most quintessentially American art forms, its influence and power naturally spread around the world in various forms. In Great Britain, the popular Dixieland-inspired "trad jazz" (or "traditional jazz") boom - epitomized by artists including The Three Bs: Mr. Acker Bilk, Chris Barber and Kenny Ball - was followed by a period of intense experimentation among jazz musicians concurrent with the rhythm and blues and rock revolutions. Rock and R&B artists, too,