Interacting with an Outdoor Activity Wall [electronic music note] Audio Description: A young boy is seated in a wheelchair on a playground. His right hand is next to a music wall. In his lap tray is a position board with brightly colored strings of beads. [electronic music notes] [distant wind chimes] [electronic music notes] He moves both arms. [electronic music notes] He moves both arms. His left hand scratches a paddle drum. A title reads, Penrickton Center for Blind Children.