On Stage: Jean Luc Ponty makes rare Del Val appearance

By Denny Dyroff, Entertainment Editor, The Times Jean Luc Ponty Jean Luc Ponty is one of the most versatile, most progressive and most interesting violinists in today’s music scene – just as he has been for the last 50-plus years. On August 18, Ponty will treat fans with a rare area performance at the Keswick Theater (291 N. Keswick Avenue, Glenside, 215-572-7650, www.keswicktheatre.com). Whether...