It’s the Society for the Preservation and Advancement of the Harmonica，It is an international harmonica organization founded in 1963 in Michigan, USA, with more than 3,000 members around the world, and is the authoritative organization in the United States harmonica industry. SPAH Harmonica Festival USA is committed to the preservation and development of traditional and modern harmonica music culture. It publishes Harmonica Happenings for its members every year to publish harmonica news from around the world and encourage the establishment and development of local harmonica clubs. SPAH Harmonica Festival USA is held once a year in August for four days. With nearly 500 harmonica enthusiasts participating, the festival featured discussions, lectures, concerts, charity events, dinners, rookie training, awarding of youth scholarships, and spending time with harmonica teachers, experts, manufacturers and friends from all over the world.