"Yer Blues"

A few years ago, I noted a temporal merism (morning and evening) in the lines "In the morning wanna die / In the evening wanna die" in "Yer Blues" (that's how they're formatted in the liner notes).  I was thinking about the song again this morning, and I realized that the repeated "wanna die" at the end of the lines is an instance of epistrophe and that, furthermore, since there are two rhetorical devices here, their effect is compounded, resulting in a greater emphasis.