Designed for children ages 3-5, this concert isbased on the African folk tale Abiyoyo, incorporating a performance by a small ensemble of CSO musicians and a storyteller with video projections, costumes and props that give young children a playful introduction to music. Preconcert activities begin 45 minutes before each concert (9:15 and 11 a.m., respectively). Once Upon a Symphony is presented in collaboration with the Chicago Children's Theatre.