I got a guitar all my own
Got a quarter for the telephone
I ain't headed down this highway all alone
One, two, three and maybe four
Honey they're knocking on my door
Well you know I'm gonna miss you when I'm gone
Ain't got no Daddy but I got a Ma
That little walk-down is the hook of the song in my opinion.
This is pretty simple, kind of a blues progression. What makes it difficult is the finger picking