GT Jams musical instruments attach to play structures, whether above or below deck, plus come in free-standing groupings. Provide rhythmic, tonal and vocal options to create musical expressions while at play. Also encourage interaction among kids to create a symphony of sound. Many instruments draw on African and Caribbean heritage. Selection includes bongo drums, shaking devices that make rattling sounds, whistles that add tonal rhythm and horns that channel sound through a funnel. Companion park benches display musical notes for “Hot Cross Buns.” GameTime Inc., Fort Payne, Ala.