By Denny Dyroff, Entertainment Editor, The Times Albert Castiglia Over the next few days, Kennett Flash (102 Sycamore Alley, Kennett Square, 484-732-8295, http://www.kennettflash.org) is presenting a series of shows that will please a wide variety of music tastes – blues, western swing, classic rock tribute, singer/songwriter and indie pop. It starts on July 25 with modern bluesman Albert Castiglia. “Born...