WAITE PARK — The Ledge Amphitheater has announced Ledgetober Flannel Fest is scheduled for Saturday, Oct. 3. The event will feature live music by: Church of Cash, a Johnny Cash tribute band; Tammy Jo; and the Mason Dixon Line. There also will be beverage sampling and local vendors selling their wares from 2-7 p.m. The show is for people 21-and-older and requires an ID. Tickets go on sale at 10 a.m. Friday, May 15, at the Ledge box office at 1700…