The Hohner ROCKET HARP Harmonica Model M2013BX-A in the key of A is a high-quality diatonic harmonica designed for musicians who play folk and world music. This harmonica, made by the well-known brand Hohner, is perfect for creating authentic and soulful sounds in a variety of musical styles. With its unique design and expert craftsmanship, the Hohner ROCKET HARP Harmonica is a popular choice for both beginners and experienced players looking to add a distinctive sound to their music.