I think the interesting difference he brought to the country music scene is typified by Sunday Morning Coming Down, which may have been his first successful hit

I think the interesting difference he brought to the country music scene is typified by Sunday Morning Coming Down, which may have been his first successful hit (for Johnny Cash). Not going to look that up, let's say it's true. It's a depressing song about standing outside of society and community, walking around the edges of it and looking at it, but not wanting to get back in. That song would have broken another way if it were written by someone else.