Visitors to Coolidge, Arizona typically pass through the city on their way to the Casa Grande National Monument, the nation's first archeological preserve. These tourists, maybe focused on having breakfast at Tag’s Café or snagging a room at the Moonlight Motel, overlook one of the city’s most surprising facets: more than a half-century ago this place was a hotbed of musical talent. The city of around 11,000 residents in the midst of cotton and alfalfa fields seems an unlikel