Hohner MS Series Blue Harmonica - The One and Only Blues Harp. The name evokes the typical blues sound. It is a metaphor for whiskey bars, juke joints, and good times; synonymous with wide plains, open fields, and pilgrimage: The Blues Harp. For over 50 years, the harmonica has shaped the sound of blues, rock, and sometimes even folk. The Blues Harp is designed for this specific blues sound, but thanks to the modular system it can easily be adjusted and changed to anything you want it to be - easy, quickly, at any time. Whether you’re a beginner or advanced, the Blues Harp is the harp for you. Product Features: Modular Construction. The comb, reed and cover plates are interchangeable with all other MS series for many possible combinations that suit your playing style. Doussie Comb. Double lacquered doussie comb minimizes swelling. Product Specifications: Reed Plates (material, thickness): Brass, 0.9 mm. Reed Plates (surface): Brass. Reeds (number, material): 20, brass. Comb (material, color): Doussie, brown. Comb (finish): Double lacquered. Mouthpiece (surface): Doussie. Cover Plates: Stainless steel. Keys: F#, F, E, Eb, D, Db, C, B(H), Bb, A, Ab, G. Type: Diatonic. Tuning: Richter. Number of Holes: 10. Tonal Range: 3 octaves. Length: 10.5 cm / 4.1"