One of this choreographer's ballets uses Respighi's Ancient Airs and Dances to adapt a Boccaccio story to the stage. An actor delivers a spoken-word Indictment in a ballet by this choreographer that includes the numbers "Church Social" and "Cotillion," and whose protagonist is simply called "The Accused." This choreographer transcribed "I Ride an Old Paint" for a ballet that was the first to incorporate a tap dance. This woman worked with Morton 
One of this choreographer's ballets uses Respighi's Ancient Airs and Dances to adapt a Boccaccio story to the stage. An actor delivers a spoken-word Indictment in a ballet by this choreographer that includes the numbers "Church Social" and "Cotillion," and whose protagonist is simply called "The Accused." This choreographer transcribed "I Ride an Old Paint" for a ballet that was the first to incorporate a tap dance. This woman worked with Morton Gould on that ballet about an axe-murderess. For 10 points, name this choreographer, the niece of director Cecil, who told the story of Lizzie Borden in Fall River Legend and worked with Aaron Copland on Rodeo.
One of this choreographer's ballets uses Respighi's Ancient Airs and Dances to adapt a Boccaccio story to the stage.
Agnes de Mille [or Agnes George de Mille]