The Rumpus has an excerpt of Tony Tost’s just-published 33 1/3 on Johnny Cash’s American Recordings. This particular passage touches on Cash, Tom Waits, Jerry Lee Lewis, and philosophies of salvation. Highly recommended. Here’s the link.
Tony also has an excellent podcast of old weird American recordings called Tony Tost’s America that is worth delving into. I’m going to recommend Episode 14, “Where the Train Goes Slow,” to match up with the excerpt above.
When you’ve finished checking all that out, you can go here to watch a fascinating crowd-sourced Johnny Cash animated video.