All this is indicated via the following quotes from Johnny Cash himself, collated from various sources over the decades of his career, that shed some light on how he penned his greatest work. 1.

This month sees the release of Songwriter, an album of unearthed songs that the late Johnny Cash recorded in 1993, right before he linked up with Rick Rubin and had his grand late-career comeback.

DETROW: Johnny Cash's voice and his songs endure decades later, and 125 of the songs that Cash wrote are included in a new book put together by his son, John Carter Cash, ...