BU Events Calendar Opera (March 1 through May 31) Monday, April 29 7:30 PM MAINSTAGE OPERA: The Cunning Little Vixen by Leoš Janáček Tuesday, April 30 7:30 PM MAINSTAGE OPERA: The Cunning Little Vixen by Leoš Janáček Wednesday, May 1 7:30 PM MAINSTAGE OPERA: The Cunning Little Vixen by Leoš Janáček Thursday, May 2 7:30 PM MAINSTAGE OPERA: The Cunning Little Vixen by Leoš Janáček