The song is in A major, and there are some places in the chord progression where returning to the tonic chord or moving away from it mirrors the lyrics. At the end of the line "'One more,' I keep sayin', 'and then I'll go home,'" the chord progression returns to A major, and since this is the tonic chord, there's a musical sense of "go[ing] home." In the second verse, the chord progression starts on A major but then moves to D major in the same way that the narrator's attention seems to shift from his own problems to watching the "people [who] are dancin' and havin' their fun." In the following line, however ("And I sit here thinkin' about what you have done"), the narrator returns his focus to his own situation, and the chord progression moves back to A major to match. During the next line ("To try and forget you, I turn to the wine"), the chord progression moves from A major to D major, in the same way that the narrator once again tries to shift his focus, but at the end of the last line ("An empty bottle, a broken heart, and you're still on my mind"), the narrator returns to thinking about his troubles and the chord progression moves back to A major.
Because the line "An empty bottle, a broken heart, and you're still on my mind" occurs at the end of every verse, there's a sense of the constancy of being "still on my mind."
