Ecco, la risposta c'è già.
http://www.gillan.com/qa-57.htmlHello Michel,
Thanks for your letter and interesting question.
I wish I could help you but I don't know if any such thing exists, I just vamp. I learned to play the harmonica when I was a kid, self taught, simple stuff. Then I heard the blues, stopped blowing and started to suck.
You can bend a note when you draw but not when you blow, so, with a little practise, and a migration of neighbours, you can get that tone. Once you find your way around the instrument (and it's not hard) you can improvise to almost anything, provided you have the right key harmonica, or harp as it has become known.
If the song is in G, I play a C harp, if it's in A, then I'm in D, and so on. There are a few good makes around and they each have their own idiosyncracies. They're not expensive as instruments go, so try out a few different makes, maybe a Hohner Blues Harp, a Hohner Pro Harp or a Lee Oskar.
Cheers, ig