The SEYDEL ORCHESTRA S Session Steel Harmonica in the key of A is a high-quality diatonic harmonica made by the brand Seydel in Germany. It features a stainless steel body and is designed for musicians looking for a harmonica with a warm tone and smooth playability. This harmonica is ideal for those playing folk or world music styles, as well as a variety of other musical genres. Its key of low C and precise construction make it a reliable and versatile instrument for both beginners and experienced players.