By Denny Dyroff, Entertainment Editor, The Times Beth Nielsen Chapman On August 9, Kennett Flash (102 Sycamore Alley, Kennett Square, 484-732-8295, www.kennettflash.org) will present a dynamite double-header featuring two of America’s most respected, veteran singer/songwriters – Beth Nielsen Chapman and Dan Navarro. Chapman’s recording history dates back to 1980 when she released her debut album...