In the 1930s, the Kim loo Sisters of Minneapolis was a harmony singing force. From May 4 through the 26th, St Paul’s History Theater in co-production with Theater Mu present “Blended Harmony: The Kim Loo Sisters. The production tracks the career of the Kim Loo sisters, which included movies, USO appearances overseas, and other big stages. When for the show’s director and Theater Mu artistic director Lily Tung Crystal talked to Phil Nusbaum, Blended Harmony: The Kim Loo Sisters was in the final stages of rehearsal. Phil asked Lily about her work as the show’s director.