Would it be happy or sad? If you had to use a song to say goodbye, would it be a sad goodbye or a happy farewell? Would it be filled with melancholy or with hopes for a happy re-encounter? i never thought about it in fact, i kept on listening to this specific song that repeated the phrase on and on like a scratched record and it was only now that i realized that the phrase is actually quite interesting.
On its own, detached from any other words, signs or phrases, that one specific sentence can really put your brain to work. Of course there are sad songs, happy songs, violent songs, songs of all sorts, but what does a song to say goodbye sound like? Should it be mellow? why would anyone use a song to say goodbye anyway? Goodbyes are moments dreaded by most of everyone; when have you ever heard anyone saying that they "loved goodbyes"? I would not raise my hand for that one, and i am pretty sure that pretty much everyone's answer to that question would be: never.
it is simple as that, if a goodbye turns into a moment, than it is most likely not a happy one. Even if the goodbye is happening because of a really cool occasion, like a promotion to a branch in a grater city or a scholarship in that cool foreign country, the goodbye on its own, the act of saying goodbye at that moment is not necessarily so filled with joy.
So, at the end, i guess that a song to say goodbye could turn out to be a pretty cool thing. Imagine; you are at the airport, dreading that awkward moment when you hug-kiss-cry-all at once moment, and everyone else around you can tell whats going on, and then, all of sudden you lover, or child, or parent starts singing you a little song, and that song will probably stick to your brain, better yet, to your heart, and will help both to go on and give both something to cling to whenever missing that special one can't even be translated into words.
Songs are meant to lift you up, songs are meant to generate emotions, to make your heart beat faster, songs can lift moods, carry movies, change the course of a play and make or ruin your day. Songs keep you company and never ever let you go, not even when you don't have anywhere or anything to play a song on, not even if your mute and can't even humm, you will always have your songs stuck within the walls of your brain.
So, yes, a song to say goodbye probably would be something very cool and generous, a true act of love!