The song is very simple and like most Cash songs, the lyrics tell more of a story than the music conveys. (You've got a way to keep me on your side/You give me cause for love that I can't hide/For you I know I'd even try to turn the tide).
 
It is based upon the "boom-chicka-boom" or "freight train" rhythm common in many of Cash's songs. In the original recording of the song, there is a key change between each of the five verses, and Cash hums the new root note before singing each verse. The final verse, a reprise of the first, is sung a full octave lower than the first verse, the root note lowered from E5 down to E4.
 
When performing this song in recording, and in later live and television appearances, Cash would place a piece of paper under the strings of his guitar towards the tuning end. As he explained during a 1990s appearance on The Nashville Network, he did this in order to simulate the sound of a snare drum, an instrument to which he did not have access during the original Sun session.