Music lovers looking for an evening of variety, fun, and strong local, regional and national talent can find all that and more at Historic Camden on Saturday evening. The 20th annual Jammin In July music festival, will start at 5 p.m. with some nine local, regional and national acts performing a variety of styles and genres gracing the stage throughout the evening. “We have really worked hard to serve up a wide variety of genres, styles and configurations over the years,” Daniel Riddick, festival founder, producer, and musician noted.