George Smith "Telephone Blues"

Hi David
I have just signed up to your site for online instruction and I am finding it inspirational. I have been playing lip pursed for many years and I am trying to develop the tongue block sound. I wonder if you can help me with the tab for the George Smith track "Telephone Blues" from the Harmonica Ace album. I believe that the intro is a 1st hole draw then a 2nd hole bend then into a 1-4 draw octave but I'm a bit stuck to where it goes after that as I cannot get the descending part to sound right. I'm using an A harp.
all the best and keep up the good work
andy