For years, Valley bluesman Hans Olson lobbied valiantly to establish an Arizona Blues Hall of Fame, building a list of 65 inductees ranging from '40s bandleader Louis Jordan (who moved here for his arthritis) to local stalwarts like Small Paul Hamilton, Big Pete Pearson, and Rochelle Raya. In the end, Olson lamented, his dream of building a blues museum wound up being only "a plaque on the wall of the Rhythm Room." But that may be fitting, since virtually all of the living inductees on the list have played the Rhythm Room at one time or another. The plain-looking, boxy little club near the center of the city may not have the prestige of Cleveland's or Seattle's music museums, but as the default home of Valley blues heads, the plaque's in the right place.