With “The Matter of Origins," the Liz Lerman Dance Exchange combines a performance and an informal salon, offering dance, video, soundscapes, tea, cake and conversation through explorations of the nature of beginnings and the principles of physics that underlie the origins of matter. This world premiere production takes place Friday, Sept. 10, at 8 p.m. Repeated on Sunday, Sept. 12, at 3 p.m. Clarice Smith Performing Arts Center’s Gildenhorn Recital Hall, University of Maryland, University Blvd. and Stadium Dr. College Park. Tickets are $28. Call 301-405-ARTS or visit claricesmithcenter.umd.edu.