Sarah Dessen said this quote

Plus there’s the fact,” he went on, making it clear he didn’t need me to reply anyway, “that music is a total constant. That’s why we have such a strong visceral connection to it, you know? Because a song can take you back instantly to a moment, or a place, or even a person. No matter what else has changed in you or the world, that one song stays the same, just like that moment. Which is pretty amazing, when you actually think about it.