The eminently mutable Pirates of Penzance gets a new look, thanks to Charis Chorus, in The Vegans of Provincetown. Gilbert & Sullivan's operetta about a pirate apprentice who leaves the ship to find love in the arms of the Major-General's youngest daughter has been reworked by Charis members Kathy Morris, Dina Young and Sonja Furiya. The music, so perfectly suited for clever silliness, has been retained, but the lyrics and plot have been retrofitted to depict a more modern and lesbian lifestyle. Frederick the apprentice is now Fredi, a young woman who's not sure she wants to be totally committed to the vegan or lesbian lifestyle -- can anyone really live without bacon or butter? (Seriously, can it even be called "living" if you can't eat buttered bacon for breakfast?) Ahem. Anywho, Fredi sets out to determine just who she is; along the way, everybody from both sides of the argument gets their noses tweaked. But it's a musical tweaking, and only political correctness suffers a fatal blow. Charis presents its full theatrical production of The Vegans of Provincetown at 8 p.m. Friday and Saturday (April 27 and 28) at the Missouri History Museum (Lindell Boulevard and DeBaliviere Avenue; 314-353-7550 or www.charischorus.org). Tickets are $18 to $25.