Well, 'afflatus' is a much more arcane word than 'revelation'; most readers will think it is another word for 'flatulence', so 'afflatus of the inevitable' sounds like your song is about Mexican cooking—but then it is just a song title, so it doesn't really make any difference.
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Mister Micawberreaders will think it is another word for 'flatulence'That was exactly my first thought!