Dylan dilemma of the day: Comma in It Ain't Me, Babe?

Without the comma, it could change the whole meaning. The word "me" meaning "my" could be a possessive pronoun in a certain colloquial English dialect with "It Ain't Me Babe" meaning "It Ain't My Babe." Grammatically, it needs the comma.

 

The absence of the comma in the complete sentence title of the song is almost as annoying to me as the misplaced apostrophes in The Mama's and the Papa's. Is it meant to be ambiguous, denoting both plural and possessive, or was someone just not very knowledgeable about proper punctuation?

 

This is true.
Another case in point.
When John & Paul wrote 'She Loves You' and presented it to Paul's dad, he suggested that they'd
change the words to 'She Loves You', citing, 'we have enough of these Americanisms around, couldn't you sing
'She Loves You, Yes, Yes, She Does' instead 'She Loves You, Yeah, Yeah, Yeah'?
They obviously didn't take his advice and look what a 'catastrophe' that turned out to be....

 

I say yes to the comma. Otherwise it ain't me babe, its someone elses.