Thu-Sat 8 p.m., Sun 2 p.m “Dancing Past to Present: Celebrating 45 Years.” The reunion performance will feature dances in the lobby at 7:15 p.m., pre-concert dialogue with alumni artists at 7:30 p.m.; a slide-show history of 45 years of dance at 7:45 p.m., and a post-performance dialogue with alumni artists.