There are two songs in particular that I think are superior candidates for exactly this type of twisting of expectations. One is considered among the most romantic standards of all time, as well as the very model of slow-dance doo-wop song. The Flamingos recorded the ultimate version of “I Only Have Eyes For You.” I don’t know if it’s the bass line, those shoo-bop-shoo-bop or the incessantly repetitive tinkling of the same piano keys, but something about this song gives it an unsettling, almost macabre edge to it. There is a feeling to this song of something dark and dangerous beneath its lyrics of undying love.