Thanks to all of you!
I haven't got any experience with playing blues harp but I will sit down and practice a lot the next few weeks. I don't play blues style, what i want to do is playing guitar and making interludes with my harp in the holder. So I think I'm going to play my G songs first and buy a D harp when I can afford it! Trollo I'm living in the Rhein-Ruhr area so I don't think we could meet and practice, but thanks to you for offering this. By the way: Understanding english is much more easier to me than writing so your short "tutorial" is understandable for me!