The prestigious Pacific Northwest Ballet makes its debut Friday and Saturday at the Myrtle Woldson Performing Arts Center. The Pacific Northwest Ballet, which has toured Europe, Australia, Taiwan, Hong Kong and Canada, will perform Kent Stowell's "White and Black Swan Pas de Deux from "Swan Lake," Jessica Lang's "The Calling," Jiri Kylian's "Petite Mort" and Twyla Tharp's "Sweet Fields."