Audience dancing onstage during Preservation Hall Jazz Band performance

View of audience members dancing onstage during a performance of the Preservation Hall Jazz Band. Audience in auditorium in foreground. Printed on front: "As some of the audience dances on stage, the Preservation Hall Jazz Band plays its authentic old-time New Orleans jazz. The concert will be presented on 'In performance at Wolf Trap' [blank] at [blank] on Channel [blank]. 'In performance at Wolf Trap' is made possible by a grant from the Atlantic Richfield Company and is transmitted nationally by PBS. The series is produced by WETA, Washington, D.C." Handwritten on back: "Preservation Hall Jazz Band."