Answer
Sesame Street, the beloved children's television show, has featured Toots Thielemans' harmonica theme for an impressive 40 years. Thielemans' iconic melody, with its cheerful and playful notes, has become synonymous with the show's opening and closing sequences. The harmonica's distinctive sound has helped to create a warm and inviting atmosphere for generations of young viewers, making it an integral part of the Sesame Street experience.