[Antonello]

So you have both going in this example.

All I know is it drives me batty at times. I didn't much care for those songs to begin with. :-p

[MeanWestTexan]

The effect is called a "Proustian Memory" and can be quite dramatic, bringing back whole floods of emotion.

There are actually therapies to make it stop (say adults that were abused who can't stand the touch of a wooden spoon or somesuch), if it really gets on your nerves.

You could probably do it yourself by listening to the music for 10 days straight while doing something entirely different.