Hohner Special 20 Harmonica Key of B Here's the perfect harmonica to learn on. The Hohner Special 20 gives you great tone and excellent bendability. Plus, since it has a special airtight design, the Special 20 is the choice for harmonica players of a bunch of different styles - from blues to country, folk to rock. The plastic comb also doesn't absorb moisture, so the Special 20 is made to last a long time. The Special 20 is the kind of harmonica you rely on, and the pick for countless gigging players (including Bob Dylan on his 2007/2008 tour). When quality and affordability count, go with the Hohner Special 20.