Sonny Terry — American Musician born on October 24, 1911, died on March 11, 1986

Saunders Terrell, better known as Sonny Terry, was a blind, American Piedmont blues musician. He was widely known for his energetic blues harmonica style, which frequently included vocal whoops and hollers, and imitations of trains and fox hunts... (wikipedia)

So I went out and bought Hard Again by Muddy Waters. That was a big learning curve. I listened to that album again and again and again. James Cotton was the harmonica player on that album.
You have to open your mind. I like the ability to express myself in a deep way. It's the closest music to our humanity - it's like a folk music that rises up out of a culture.
If you've got a good vibrato, you can get away with a lot.
It's very easy to learn. And very difficult to master.