This is simple. Leave the title of one song in my comment section (or on Facebook or Tweet it) that brings back a memory every time you hear it. It can be a happy memory, a sad memory, it can remind you of a childhood sweetheart, the first time you kissed, the first time you did the backseat boogie . . . whatever. Just leave the title of a song and the memory it evokes.
For me, wow . . . Jim Croce, Long Time Ago. A Jr high romance, quite innocent, but it felt real at the time.