In its 65 years, America’s first music festival has had its ups, downs, sideways migrations, and namewise mutations. It’s now firmly back where it belongs—on the lawns of Newport and the slopes of Parnassus. Bassist Christian McBride pitches a tent that’s big and inclusive, but reliably exclusive, too, encompassing Ron Carter and The Bad Plus, Dee Dee Bridgewater and Darcy James Argue’s Secret Society. —E.E.