For one night only — Saturday, at 7 p.m. — three musical acts will perform to support the Appomattox Courthouse Theater. The Elder Sisters will present old time Gospel and Appalachian folk music; The Flaming Katz will perform Baby Boomer rock from the 1960s and ’70s; and the Farm Use String Band will bring on traditional old-time mountain fiddle music. Admission armbands can be purchased at Baine’s Books & Coffee, the Appomattox Visitor’s Center or by calling (434) 664-9525.