Folsom Prison Blues - guitar chords and comments

Lyrics without distraction HERE

In 1956, Cash walked into the Sun Studio, Memphis and told them «I've got a new song here, but I borrowed a few lines». They didn't mind, and put his name solely on the label. Actually nobody minded, until 13 years later, when the song became a world wide hit after successful "At Folsom Prison" performance.
NOW Gordon Jenkins claimed a copyright infringement of his "Seven Dreams" concept album from 1953, referring to Beverly Maher singing the third part "The Conductor", called "Crescent City". He was silently payed off - most probably with a lot more cash than he ever made from his obscure production. But rip-off? Sure it was. Fortunately.
This is a typical "boom-chicka-boom" song. The story behind the "boom-chicka-boom" style I've summed up HERE.
E
I hear the train a comin'  it's rolling round the bend
E                                  E7
and I ain't seen the sunshine since I don't know when
    A                       A7                     E
I'm stuck in Folsom prison and time keeps draggin' on
           B7                                    E
but that train keeps a rollin' on down to San Antone
E major
E
E 7th
E7
A major
A
A 7th
A7
B 7th
B7
Gordon Jenkins
Johnny Cash