Pennsylvania Ballet announced next season's roster yesterday, and it includes 20—yes, 20—promotions. How, you ask? Artistic director Angel Corella has updated the ranking system, adding demi-soloist and first soloist levels to the mix. PAB now joins a handful of other U.S. companies, including Miami City Ballet, Houston Ballet, Ballet West and Tulsa Ballet, that have adopted a more European-style, multi-tiered ranking system. So while four PAB apprentices have been promoted to the corps, an abundance of corps and soloist dancers have also risen up a notch (or two).