NEWPORT, R.I. — The Newport Jazz Festival is back for another year, 58 years after it began in Rhode Island’s city by the sea. The iconic musical event began Friday night with a kickoff concert featuring Dr. John and the Preservation Hall Jazz Band at the International Tennis Hall of Fame. The event concludes Sunday. George Wein, the event’s longtime producer, took the festival and the Newport Folk Festival nonprofit last year in an attempt to ensure their long-term success.