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Dr. Gabe Petrocelli, director of the Ontario-Chaffey Community Show Band will visit DJ Larry the Fox’s show “All that Jazz” at 3:30 pm on Saturday, April 12: Dr. Petrocelli is also a widely acclaimed composer, arranger, and educator. The Show Band’s Concert “Salute to the Giants of Jazz” will be held at 7:30 pm on Monday, April 14, in the Ontario High School Auditorium. This event will be particularly timely in that April is National Jazz Appreciation Month.