The Rock Harp Elegant Looks and Style. More and more professionals are turning to this harp for its extreme durability, consistent, powerful sound and slick appearance. A well kept secret among performers looking to add an MS model to their arsenal of Special 20s and Marine Bands. Black covers, black plastic body, standard diatonic tuning, all major keys. Replacement reed plates sold separately. Features • Black plastic comb with recessed reed plates • Black laquered stainless steel covers without side vents • 20 MS reeds • 0.9 mm brass reed plates • Available in all 12 major keys • Made in Germany item name Pro Harp MS type diatonic tuning Richter Number of holes 10 Reeds 20 brass Cover surface lacquer, black Reed plates 0,9 mm brass Reed plate surface brass Mouthpiece surface ABS Comb ABS, black Length 10,5 cm