Hasbro Create-a-Song Drop 'n Play is a musical toy that encourages creativity and introduces children to the world of music. It features two modes: Song Mode and Sound Effects Mode. In Song Mode, dropping balls into the dimples starts the music, and adding or removing balls alters the arrangement. Pressing the G clef button changes the song. In Sound Effects Mode, dropping balls triggers different sound effects, and pressing the G clef button switches back to Song Mode. The toy includes 3 AA batteries and a Phillips/cross head screwdriver is required for battery replacement.