Zilker Theatre Productions, a 501(c)(3) non-profit organization that provides award-winning, free admission entertainment, boasts an audience of 40,000 annually. ZTP is dedicated to the celebration and preservation of that unique American art form, the Broadway musical, by mounting large-scale musical productions at the Beverly S. Sheffield Zilker Hillside Theater in Austin’s beautiful Zilker Park. Our Mission Zilker Theatre Productions strives to provide the entire community access to exceptional performing arts experiences. Our Story Originally created as a project of the Austin’s Parks and Recreation Department in 1959, the Zilker Summer Musical continues to provide high-quality musical theater entertainment to Central Texans and visitors from around the world. Zilker Theatre Productions (formerly known as “Friends of the Summer Musical”) has been dedicated since its inception in 1987 to preserving this special gift to Austin audiences by producing the Zilker Summer Musical as well as sponsoring a variety of other community outreach and youth training programs. Visit our website for more information: zilker.org