be it a different song reminding you of its melody, something someone says reminding u of its lyrics, or out of the blue being all "wait what was that song i used to love?", the moment of finally recalling the song is an orgasm in miniature. & the longer it takes u to find, the more painful the search feels, but the sweeter the discovery is! i was trying to think of an example just now and again couldn't remember the name of the band that i was searching for for 3 whole months this past year. but now after looking for 20 minutes i'm listening to Breast Stroke by Flaming Tunes and its so much sweeter than it would have been otherwise :)