I'm not sure if I've mentioned Ricky Cool in the past but Ricky is another performer/harp player, giving tips and lessons on YouTube. He has an infectious teaching manner and you can see he really knows what he's talking about because he loves the harp and the blues so much. He's worth a few minutes of your time.
Thanks for posting that, tooka. I can't believe I've never heard that song before. I've never heard anybody covering it. Papa Lightfoot's getting an amazing harp sound. I wonder what he was using back then? I sounds like in the first part of his solo he's staying on the I for only three bars, making it 11 bars the first time through. Also it sounds like it was done in Eb. I wonder if that was done originally, or if something happened to drop it down a half step. Great stuff! Gotta work out a version of that song.